Materiały źródłowe

• #1 Headache

  https://www.mayoclinic.org/symptoms/headache/basics/causes/sym-20050800

  Your headache symptoms can help your doctor determine its cause and the appropriate treatment. Most headaches aren’t the result of a serious illness, but some may result from a life-threatening condition requiring emergency care. […] A primary headache is caused by overactivity of or problems with pain-sensitive structures in your head. A primary headache isn’t a symptom of an underlying disease. […] Chemical activity in your brain, the nerves or blood vessels surrounding your skull, or the muscles of your head and neck (or some combination of these factors) can play a role in primary headaches. Some people may also carry genes that make them more likely to develop such headaches. […] A secondary headache is a symptom of a disease that can activate the pain-sensitive nerves of the head. Any number of conditions varying greatly in severity may cause secondary headaches.

• #2 Headache | Better Health Channel

  https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/headache

  Headaches are very common, with around 15% of Australians taking pain-relieving medication for headache at any given time. […] There are different types of recurring headache and many causes, so it is important to seek diagnosis from a qualified health professional. […] Causes of headache can include stress, medications, diet, jaw problems, and illnesses of the eye, ear, nose and throat. […] Anything that stimulates the pain receptors in a persons head or neck can cause a headache, including: stress, muscular tension, dental or jaw problems, infections, diet, eye problems, hormonal influences, medications, disorders of the ear, nose or throat, disorders of the nervous system, injury to the head, neck or spine, high blood pressure, poor posture, hangover from abuse of alcohol or drugs, temperature extremes, dehydration, noise, temporal arteritis, arthritis, meningitis.

• #3 Headache

  https://www.mayoclinic.org/symptoms/headache/basics/causes/sym-20050800

  Your headache symptoms can help your doctor determine its cause and the appropriate treatment. Most headaches aren’t the result of a serious illness, but some may result from a life-threatening condition requiring emergency care. […] A primary headache is caused by overactivity of or problems with pain-sensitive structures in your head. A primary headache isn’t a symptom of an underlying disease. […] Chemical activity in your brain, the nerves or blood vessels surrounding your skull, or the muscles of your head and neck (or some combination of these factors) can play a role in primary headaches. Some people may also carry genes that make them more likely to develop such headaches. […] A secondary headache is a symptom of a disease that can activate the pain-sensitive nerves of the head. Any number of conditions varying greatly in severity may cause secondary headaches.

• #4 Headache: What It Is, Types, Causes, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/9639-headaches

  Headaches are a very common condition that most people will experience many times during their lives. While most headaches aren’t dangerous, certain types can be a sign of a serious underlying condition. […] Lifestyle factors that can trigger headaches include consuming alcohol or nicotine, changes in sleep, poor posture and more. […] Dysfunction or over-activity of pain-sensitive features in your head cause primary headaches. They’re not a symptom of or caused by an underlying medical condition. Some people may have genes that make them more likely to develop primary headaches. […] An underlying medical condition causes secondary headaches. They’re considered a symptom or sign of a condition. […] Headache pain results from signals interacting among your brain, blood vessels and surrounding nerves. During a headache, multiple mechanisms activate specific nerves that affect muscles and blood vessels. These nerves send pain signals to your brain, causing a headache. […] Headaches tend to run in families, especially migraines. Children who have migraines usually have at least one biological parent who also experiences them. […] Treatment for secondary headaches involves treating the underlying medical condition causing it.

• #5 Headache – Wikipedia

  https://en.wikipedia.org/wiki/Headache

  A headache, also known as cephalalgia, is the symptom of pain in the face, head, or neck. It can occur as a migraine, tension-type headache, or cluster headache. […] Headaches can occur as a result of many conditions. […] Causes of headaches may include dehydration; fatigue; sleep deprivation; stress; the effects of medications (overuse) and recreational drugs, including withdrawal; viral infections; loud noises; head injury; rapid ingestion of a very cold food or beverage; and dental or sinus issues (such as sinusitis). […] Headaches are broadly classified as „primary” or „secondary”. Primary headaches are benign, recurrent headaches not caused by underlying disease or structural problems. […] Secondary headaches are caused by an underlying disease, like an infection, head injury, vascular disorders, brain bleed, stomach irritation, or tumors.

• #6 Headache Information, Causes, and Symptoms

  https://www.healthline.com/health/headache

  Headaches can occur as a symptom of another health condition, such as an infection, or as part of a headache disorder. Headache disorders may cause other symptoms, including sensitivity to light or sound and visual changes. […] There are several kinds of headaches caused by various factors such as our environment, the medication we take, and other causes. Many treatment options are available to help manage the pain. […] Headache disorders are painful, with discomfort felt in the head, neck, and shoulders. A headache occurs because of a primary or secondary cause. […] Primary headaches, like migraine or tension headaches, are among the most common headaches that lead people to seek medical treatment, and they affect an estimated 3 billion people each year. […] This type of headache isn’t a symptom of any disease but a disease on its own. It is a primary headache because it is the main concern.

• #7 Acute Headache – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK554510/

  Headaches are broadly classified as primary or secondary. Primary headaches are those with no identifiable underlying cause. Secondary headaches are the result of other underlying pathology. […] The International Classification of Headache Disorders (ICHD-III) classifies headaches. These categories are: Primary headache, including tension, migraine, and cluster; Secondary headache, including potentially life-threatening etiologies such as traumatic brain injury and vascular disorders; Cranial neuropathies, such as trigeminal neuralgia. […] Headache can be a symptom of many underlying pathologies, some of which can lead to severe disability and mortality. The emergency clinician should be especially familiar with the following conditions: Hypertensive emergencies, Idiopathic intracranial hypertension, Carotid or vertebrobasilar dissection, Space occupying lesions (tumors, abscesses, cysts), Acute hydrocephalus, Dural sinus thrombosis, Intracranial hemorrhage, Giant cell (temporal) arteritis, Cerebrovascular accident or stroke, Meningitis and encephalitis, Carbon monoxide poisoning, Toxin exposure or withdrawal, Acute angle-closure glaucoma, Medication overuse headache.

• #8 Headaches: Causes, types, and treatment

  https://www.medicalnewstoday.com/articles/headaches

  Headaches are a common health problem that most people experience at some time. […] Factors that lead to headaches may be: emotional, such as stress, depression, or anxiety; medical, such as migraine or high blood pressure; physical, such as an injury; environmental, such as the weather. […] A 2020 study found that TTH is closely related to stress. […] Migraine is the third most common and the seventh most disabling illness globally. […] A migraine headache may involve pulsating, throbbing pain. […] Migraine headaches are the second most common form of primary headache after TTH. […] A primary headache is not a symptom of an underlying illness. Instead, these headaches result from problems involving the structures of the head and neck. […] Common primary headache disorders include migraine, cluster, tension, and medication overuse headaches. […] This form of headache is a symptom of an underlying medical condition. […] The cause of a secondary headache may be: pregnancy; systemic conditions, such as an infection; hypothyroidism; giant cell arteritis; stroke; brain tumor. […] Secondary headaches can result from serious health issues.

• #9 Headache

  https://www.mayoclinic.org/symptoms/headache/basics/causes/sym-20050800

  Possible causes of secondary headaches include: Acute sinusitis, Arterial tears (carotid or vertebral dissections), Blood clot (venous thrombosis) within the brain separate from stroke, Brain aneurysm, Brain AVM (arteriovenous malformation), Brain tumor, Carbon monoxide poisoning, Chiari malformation (structural problem at the base of your skull), Concussion, Coronavirus disease 2019 (COVID-19), Dehydration when the body doesn’t have enough water and other fluids to work as it should, Dental problems, Ear infection (middle ear), Encephalitis (brain inflammation), Giant cell arteritis (inflammation of the lining of the arteries), Glaucoma (acute angle closure glaucoma), Hangovers, High blood pressure (hypertension), Influenza (flu) and other febrile (fever) illnesses, Intracranial hematoma, Medications to treat other disorders, Meningitis, Monosodium glutamate (MSG), Overuse of pain medication, Panic attacks and panic disorder, Persistent post-concussive symptoms (Post-concussion syndrome), Pressure from tight headgear, such as a helmet or goggles, Pseudotumor cerebri (idiopathic intracranial hypertension), Stroke, Toxoplasmosis, Trigeminal neuralgia (as well as other neuralgias, all involving irritation of certain nerves connecting the face and brain).

• #10 Headache | National Institute of Neurological Disorders and Stroke

  https://www.ninds.nih.gov/health-information/disorders/headache

  Headache is a condition thats one of the most common causes of pain and a major reason people miss work or schooland visit the doctor. […] There are three groups of headaches. Primary headaches happen on their own, while secondary headaches happen because of some other medical condition. […] Secondary headache is a symptom of another health condition that presses on, pulls, or pushes pain-sensitive nerve endings. These types of headache come from conditions that affect the brain. Some of the causes of secondary headache include: Blood vessel disorders in the brain, including stroke, Brain tumor, Brain injury, Change in routine, like airplane travel or fasting, High blood pressure, Seizures, Substance misuse or withdrawal, Infection. […] Some types of headache can happen from neuropathy, which is damage to the nerves. One example is trigeminal neuralgia, a condition with sudden attacks of severe facial pain.

• #11 Headache: What It Is, Types, Causes, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/9639-headaches

  Headaches are a very common condition that most people will experience many times during their lives. While most headaches aren’t dangerous, certain types can be a sign of a serious underlying condition. […] Lifestyle factors that can trigger headaches include consuming alcohol or nicotine, changes in sleep, poor posture and more. […] Dysfunction or over-activity of pain-sensitive features in your head cause primary headaches. They’re not a symptom of or caused by an underlying medical condition. Some people may have genes that make them more likely to develop primary headaches. […] An underlying medical condition causes secondary headaches. They’re considered a symptom or sign of a condition. […] Headache pain results from signals interacting among your brain, blood vessels and surrounding nerves. During a headache, multiple mechanisms activate specific nerves that affect muscles and blood vessels. These nerves send pain signals to your brain, causing a headache. […] Headaches tend to run in families, especially migraines. Children who have migraines usually have at least one biological parent who also experiences them. […] Treatment for secondary headaches involves treating the underlying medical condition causing it.

• #12 Understanding Headache Causes, Treatment & Prevention | TYLENOL®

  https://www.tylenol.com/adult-relief/headaches/causes-treatment-prevention

  Headaches can range from mildly uncomfortable to completely debilitating. But what are headaches? Understanding what causes headache pain begins with knowing what happens in the body. […] Headaches occur when signals interact with the brain, blood vessels, and surrounding nerves. These interactions can lead to pain, which may be localized or spread across different areas of the head. […] Headaches can stem from a variety of sources and recognizing which type you have may be key to preventing them. Here are common headache causes: […] Often called a stress headache or tension headache, these headaches may be caused by muscle tension in the neck and scalp. The effects of stress on the body can also lead to hormonal changes and anxiety, both of which can make headaches worse. […] Can a headache be caused by dehydration? Definitely! The body is mostly made up of water, and when you’re dehydrated, the brain and other tissues shrink. This contraction can put pressure on nerves and may cause pain.

• #13 Headache | National Institute of Neurological Disorders and Stroke

  https://www.ninds.nih.gov/health-information/disorders/headache

  The brain itself doesn’t feel pain. Often, headaches happen when pain-sensitive nerve endings (or neurons) respond to triggers or signals in our bodystress, certain foods or smells, or some medicines can cause these signals. […] Headache conditions affect some people more than others. […] Some people may experience a headache attack after eating certain foods. […] Emotional stress (such as from school activities, moving, or family problems) can lead to a headache attack. […] Regular overuse of headache medications can actually worsen headache attacks or cause new headache symptoms. […] The first step in treating a headache is to identify any health conditions that could be causing the headaches. Treating that health condition can also help with any related symptoms, like headaches. […] NINDS-supported research has helped to understand the long-term effects of COVID-19 infections, known as Long COVID. Headaches are a potential symptom of Long COVID, and researchers are starting to identify nervous and immune system changes that can lead to or complicate the condition.

• #14 What causes headaches? | HowStuffWorks

  https://health.howstuffworks.com/diseases-conditions/headache/what-causes-headaches.htm

  The pain you feel when you have a headache is caused by pain-sensitive structures called nociceptors. These structures are found at the ends of certain nerve fibers. Factors such as stress, muscle tension, or dilated blood vessels set off a chain of events that can activate the nociceptors. […] Different types of headaches have different causes.

• #15 The four causes of primary headaches | Medmastery

  https://www.medmastery.com/guides/headaches-clinical-guide/etiology-primary-headaches-four-main-culprits?srsltid=AfmBOopTKqv95_9ju0oDY5xnihQ0wJ9LIjeBuWzF_yfiia4hm79k2N2e

  Many neurotransmitter substances are involved, including substance P, calcitonin gene-related peptide, and neurokinins. The release of these substances is believed to lead to neurogenic inflammation of vessels and nerve fibers, and thus enhancement of pain. […] Complex phenomena, such as photosensitivity and phonosensitivity, which are seen in migraine, can’t be explained by simple peripheral vascular mechanisms. Aura, and the influence of stress, weather and hormones are further examples of much more complex phenomena. The pathophysiology of auras involves a spreading cortical region of decreased blood flow and depolarization. These phenomena are under investigation and have led to new theories as to the origin of migraine pain, as well as new approaches to treatment.

• #16 The four causes of primary headaches | Medmastery

  https://www.medmastery.com/guides/headaches-clinical-guide/etiology-primary-headaches-four-main-culprits?srsltid=AfmBOopTKqv95_9ju0oDY5xnihQ0wJ9LIjeBuWzF_yfiia4hm79k2N2e

  Many neurotransmitter substances are involved, including substance P, calcitonin gene-related peptide, and neurokinins. The release of these substances is believed to lead to neurogenic inflammation of vessels and nerve fibers, and thus enhancement of pain. […] Complex phenomena, such as photosensitivity and phonosensitivity, which are seen in migraine, can’t be explained by simple peripheral vascular mechanisms. Aura, and the influence of stress, weather and hormones are further examples of much more complex phenomena. The pathophysiology of auras involves a spreading cortical region of decreased blood flow and depolarization. These phenomena are under investigation and have led to new theories as to the origin of migraine pain, as well as new approaches to treatment.

• #17 The four causes of primary headaches | Medmastery

  https://www.medmastery.com/guides/headaches-clinical-guide/etiology-primary-headaches-four-main-culprits?srsltid=AfmBOopTKqv95_9ju0oDY5xnihQ0wJ9LIjeBuWzF_yfiia4hm79k2N2e

  Many neurotransmitter substances are involved, including substance P, calcitonin gene-related peptide, and neurokinins. The release of these substances is believed to lead to neurogenic inflammation of vessels and nerve fibers, and thus enhancement of pain. […] Complex phenomena, such as photosensitivity and phonosensitivity, which are seen in migraine, can’t be explained by simple peripheral vascular mechanisms. Aura, and the influence of stress, weather and hormones are further examples of much more complex phenomena. The pathophysiology of auras involves a spreading cortical region of decreased blood flow and depolarization. These phenomena are under investigation and have led to new theories as to the origin of migraine pain, as well as new approaches to treatment.

• #18 Tension headache – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/tension-headache/symptoms-causes/syc-20353977

  A tension-type headache is the most common type of headache, yet its causes aren’t well understood. […] The cause of tension-type headaches is not known. In the past, experts thought tension-type headaches were caused by muscle contractions in the face, neck and scalp. They thought the muscle contractions were a result of emotions, tension or stress. But research suggests that muscle contraction isn’t the cause. […] The most common theory is that people who have tension-type headaches have increased sensitivity to pain. Muscle tenderness, a common symptom of tension-type headaches, may result from this sensitized pain system. […] Stress is the most commonly reported trigger for tension-type headaches. […] Some research has found that women are more likely to have frequent episodic tension-type headaches and chronic tension-type headaches. Age also might play a factor. One study found that episodic tension-type headaches were more likely to affect people in their 40s.

• #19 Acute Headache in Adults: A Diagnostic Approach | AAFP

  https://www.aafp.org/pubs/afp/issues/2022/0900/acute-headache-adults.html

  A detailed history and physical examination can distinguish between key features of benign primary headaches (e.g., tension-type, migraine, trigeminal autonomic cephalalgia) and concerning symptoms that warrant further evaluation for a secondary headache (e.g., subarachnoid hemorrhage, giant cell arteritis). Most headaches assessed in primary care are benign. […] Most patients who present for a headache evaluation have a primary headache disorder. The most diagnosed types of primary headaches are tension-type (46% to 78%), migraine (14% to 16%), and trigeminal autonomic cephalalgias (less than 1%). […] Migraine headache has a lifetime prevalence of 16% and a one-year prevalence of 12%. Migraine headache is more common in women (one-year prevalence is 17% of women vs. 5.6% of men). Migraine prevalence peaks between 20 and 50 years of age.

• #20 Tension headache – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/tension-headache/symptoms-causes/syc-20353977

  A tension-type headache is the most common type of headache, yet its causes aren’t well understood. […] The cause of tension-type headaches is not known. In the past, experts thought tension-type headaches were caused by muscle contractions in the face, neck and scalp. They thought the muscle contractions were a result of emotions, tension or stress. But research suggests that muscle contraction isn’t the cause. […] The most common theory is that people who have tension-type headaches have increased sensitivity to pain. Muscle tenderness, a common symptom of tension-type headaches, may result from this sensitized pain system. […] Stress is the most commonly reported trigger for tension-type headaches. […] Some research has found that women are more likely to have frequent episodic tension-type headaches and chronic tension-type headaches. Age also might play a factor. One study found that episodic tension-type headaches were more likely to affect people in their 40s.

• #21 Causes of headaches – Harvard Health

  https://www.health.harvard.edu/staying-healthy/causes-of-headaches

  It’s hard to think about the causes of headaches when you’re struggling with pain. […] The most common types of headaches are tension and migraine headaches. […] But what makes the muscles tense, or causes some nerve endings in the brain to become so sensitive? […] Those causes of headaches can vary from person to person. […] Tension headaches are often set off by: stress, lack of sleep, fatigue, hunger, caffeine withdrawal, abrupt cessation of medications that contain caffeine, such as some pain-relieving medications like ibuprofen (Advil) or acetaminophen (Tylenol), weather changes, food and drinks, such as chocolate; processed foods that contain monosodium glutamate (MSG); or alcohol. […] Many of those triggers for tension headachesespecially stress, hunger, fatigue, and lack of sleepcan also set off a migraine headache.

• #22 Causes of headaches – Harvard Health

  https://www.health.harvard.edu/staying-healthy/causes-of-headaches

  It’s hard to think about the causes of headaches when you’re struggling with pain. […] The most common types of headaches are tension and migraine headaches. […] But what makes the muscles tense, or causes some nerve endings in the brain to become so sensitive? […] Those causes of headaches can vary from person to person. […] Tension headaches are often set off by: stress, lack of sleep, fatigue, hunger, caffeine withdrawal, abrupt cessation of medications that contain caffeine, such as some pain-relieving medications like ibuprofen (Advil) or acetaminophen (Tylenol), weather changes, food and drinks, such as chocolate; processed foods that contain monosodium glutamate (MSG); or alcohol. […] Many of those triggers for tension headachesespecially stress, hunger, fatigue, and lack of sleepcan also set off a migraine headache.

• #23

• #24 Headache Pain: When to Worry, What to Do – Harvard Health Publishing – Harvard Health

  https://www.health.harvard.edu/pain/headache-when-to-worry-what-to-do

  Nearly everyone has had headache pain, and most of us have had it many times. […] Doctors don’t fully understand what causes most headaches. […] The blood vessels in the head and neck can signal pain, as can the tissues that surround the brain and some major nerves that originate in the brain. […] There are more than 300 types of headaches, but only about 10% of headaches have a known cause. […] Neurologists believe that migraines are caused by changes in the brain’s blood flow and nerve cell activity. […] Genetics play a role since 70% of migraine victims have at least one close relative with the problem. […] Medication headaches. Many drugs number headaches among their side effects. […] If you have frequent headaches and use medication, OTC or prescription, or both, for more than 10 to 15 days a month, you may have medication overuse headaches. […] Sinusitis is not a common cause of chronic or recurrent headaches. […] Except in cases of very high blood pressure, hypertension does not cause headaches. […] Sudden, strenuous exercise can bring on a headache.

• #25 Acute Headache in Adults: A Diagnostic Approach | AAFP

  https://www.aafp.org/pubs/afp/issues/2022/0900/acute-headache-adults.html

  A detailed history and physical examination can distinguish between key features of benign primary headaches (e.g., tension-type, migraine, trigeminal autonomic cephalalgia) and concerning symptoms that warrant further evaluation for a secondary headache (e.g., subarachnoid hemorrhage, giant cell arteritis). Most headaches assessed in primary care are benign. […] Most patients who present for a headache evaluation have a primary headache disorder. The most diagnosed types of primary headaches are tension-type (46% to 78%), migraine (14% to 16%), and trigeminal autonomic cephalalgias (less than 1%). […] Migraine headache has a lifetime prevalence of 16% and a one-year prevalence of 12%. Migraine headache is more common in women (one-year prevalence is 17% of women vs. 5.6% of men). Migraine prevalence peaks between 20 and 50 years of age.

• #26 Headache Pain: When to Worry, What to Do – Harvard Health Publishing – Harvard Health

  https://www.health.harvard.edu/pain/headache-when-to-worry-what-to-do

  Nearly everyone has had headache pain, and most of us have had it many times. […] Doctors don’t fully understand what causes most headaches. […] The blood vessels in the head and neck can signal pain, as can the tissues that surround the brain and some major nerves that originate in the brain. […] There are more than 300 types of headaches, but only about 10% of headaches have a known cause. […] Neurologists believe that migraines are caused by changes in the brain’s blood flow and nerve cell activity. […] Genetics play a role since 70% of migraine victims have at least one close relative with the problem. […] Medication headaches. Many drugs number headaches among their side effects. […] If you have frequent headaches and use medication, OTC or prescription, or both, for more than 10 to 15 days a month, you may have medication overuse headaches. […] Sinusitis is not a common cause of chronic or recurrent headaches. […] Except in cases of very high blood pressure, hypertension does not cause headaches. […] Sudden, strenuous exercise can bring on a headache.

• #27 Migraine: What It Is, Types, Causes, Symptoms & Treatments

  https://my.clevelandclinic.org/health/diseases/5005-migraine-headaches

  Yes, migraines tend to run in biological families. Up to 80% of people with migraines have a first-degree biological relative with the condition. […] A migraine can affect anyone at any age, from children to adults. Women are more likely than men to experience a migraine. […] Other risk factors that may make you more likely to experience a migraine include: Biological family history of migraines, Underlying medical condition (depression, anxiety, sleep disorders and epilepsy), Regular use of tobacco products.

• #28 Headaches and Migraines: Causes and Risk Factors

  https://www.verywellhealth.com/headaches-causes-4685674

  The cause of headaches, or why headaches develop, is complex, often involving an intricate web of pain receptors, abnormal brain processes, genetics, and a neurological phenomenon called sensitization. Outside or environmental factors are also commonly involved, serving as headache triggers—the factors that unmindfully activate pain signals within the brain. […] Research suggests that migraine headaches develop as a result of the activation of the trigeminovascular system—a complex pathway that links trigeminal nerve fibers to blood vessels of the brain. […] Experts believe that tension-type headaches result from the activation of myofascial (the tissue that covers muscles) pain receptors. Once activated, pain signals are transmitted to the brain. […] The pathogenesis, or the „why” behind cluster headache development, is not fully understood. Experts suspect that the cause is likely linked to the hypothalamus—a gland located within your brain that helps regulate sleep and circadian rhythm.

• #29 Headache: Types, Symptoms, Causes, Treatment, & More

  https://www.health.com/headache-causes-7094931

  Early research suggested that serotonina brain chemical messenger known as a neurotransmittermight lead to migraine symptoms. Scientists believe that serotonin can release a protein called CGRP in some people that activates a facial nerve called the trigeminal nerve. The trigeminal nerve sends pain signals to the brain, resulting in migraine headaches. […] Some people may be more likely to experience migraine than others. Risk factors for migraine include having a family history of migraine and experiencing other health conditions such as depression, anxiety, epilepsy, or a sleep disorder. […] Tension-type headaches occur when the muscles in the scalp and neck become tense. However, scientists dont know the exact reason headache-related muscle tension occurs. […] Common risk factors for tension headaches include emotional stress, eye strain or fatigue, smoking, physically overexerting your body, and excessive use of caffeine.

• #30 Headache Information, Causes, and Symptoms

  https://www.healthline.com/health/headache

  Migraine headaches can be predictable because some start with an aura. […] Migraine is classified as: a moderate-to-severe headache, one-sided, pulsating, aggravated by routine physical activity, lasts hours to 2 to 3 days. […] Migraine and other types of headaches can be triggered by things like diet, activity, and environmental factors. Common triggers include: activity, alcohol, allergy or sinuses, auditory, emotion, food or eating, hormones, medications, trauma, changes in sleep habits, smells, stress, environment, motion from a vehicle, visual.

• #31 Headache Information, Causes, and Symptoms

  https://www.healthline.com/health/headache

  Migraine headaches can be predictable because some start with an aura. […] Migraine is classified as: a moderate-to-severe headache, one-sided, pulsating, aggravated by routine physical activity, lasts hours to 2 to 3 days. […] Migraine and other types of headaches can be triggered by things like diet, activity, and environmental factors. Common triggers include: activity, alcohol, allergy or sinuses, auditory, emotion, food or eating, hormones, medications, trauma, changes in sleep habits, smells, stress, environment, motion from a vehicle, visual.

• #32 Headaches and Migraines: Causes and Risk Factors

  https://www.verywellhealth.com/headaches-causes-4685674

  In addition to the hypothalamus, trigeminal nerve stimulation, histamine release, genetics, and activation of the autonomic nervous system may contribute to the development of cluster headaches. […] A headache can be caused by many different things, including stress, hormones, hunger, intense emotions, weather, sleep disturbances, illness, mild dehydration, alcohol, cigarettes, and certain foods. […] Migraines are caused by the activation of a part of the brain known as the trigeminovascular system. Common migraine triggers include stress, hormonal fluctuations, weather changes, sleep disturbances, odors, and skipping meals. Certain foods and beverages can also trigger migraines. These include nitrates, alcohol, caffeine, and aspartame.

• #33 The Complete Headache Chart | National Headache Foundation

  https://headaches.org/resources/the-complete-headache-chart/

  Allergy Headache: Precipitating Factors: Seasonal allergens, such as pollen, molds. Allergies to food are not usually a factor. […] Aneurysm/Subarachnoid Hemorrhage: Precipitating Factors: Caused by weakness or bulge in blood vessel at the base of the brain. May rupture or allow blood to leak leading to a hemorrhagic stroke. […] Caffeine-Withdrawal Headache: Precipitating Factors: Caffeine consumption. […] Cervicogenic Headache: Precipitating Factors: Injury to the neck, malformations of the cervical vertebrae, arthritis of the upper spine. […] Chronic Daily Headache: Precipitating Factors: Typically evolve from transformed migraine. […] Chronic Migraine: Precipitating Factors: Medication Overuse Headache (MOH) and poorly controlled episodic migraine. […] Cluster Headache: Precipitating Factors: May be inherited in 5% of cases. During cluster, attacks may be provoked by alcohol.

• #34 Cluster headache: MedlinePlus Medical EncyclopediaLock

  https://medlineplus.gov/ency/article/000786.htm

  A cluster headache is an uncommon type of headache. It is one-sided head pain that may involve tearing of the eyes, a droopy eyelid, and a stuffy nose. […] Doctors do not know exactly what causes cluster headaches. They seem to be related to the body’s sudden release of histamine (chemical in the body released during an allergic response) or serotonin (chemical made by nerve cells) in the area of a nerve in the face called the trigeminal nerve. A problem in a small area at the base of the brain called the hypothalamus may be involved. […] More men than women are affected. The headaches can occur at any age, but are most common in the 20s through middle age. They tend to run in families. […] Cluster headaches may be triggered by: Alcohol, Cigarette smoking, High altitudes (trekking and air travel), Bright light (including sunlight), Exertion (physical activity), Heat (hot weather or hot baths), Foods high in nitrites (bacon and preserved meats), Certain medicines, Cocaine.

• #35 Headache: Types, Symptoms, Causes, Treatment, & More

  https://www.health.com/headache-causes-7094931

  There are two main theories that researchers have developed about the cause of cluster headaches. One theory is that a dysfunction in the hypothalamus (the part of the brain responsible for sleep, body temperature, hormone regulation, and blood pressure) could lead to cluster headache symptoms. […] The other theory is related to the release of histamine. Histamine is a chemical released in response to an injury, allergy, or inflammation in the brain and may cause head pain and eye and nose-related symptoms. […] There are several risk factors for cluster headaches. Those factors can include alcohol and tobacco use, exposure to bright lights, taking certain medications, physical overexertion, and heat (such as hot weather or hot baths).

• #36 Headache: Types, Symptoms, Causes, Treatment, & More

  https://www.health.com/headache-causes-7094931

  There are two main theories that researchers have developed about the cause of cluster headaches. One theory is that a dysfunction in the hypothalamus (the part of the brain responsible for sleep, body temperature, hormone regulation, and blood pressure) could lead to cluster headache symptoms. […] The other theory is related to the release of histamine. Histamine is a chemical released in response to an injury, allergy, or inflammation in the brain and may cause head pain and eye and nose-related symptoms. […] There are several risk factors for cluster headaches. Those factors can include alcohol and tobacco use, exposure to bright lights, taking certain medications, physical overexertion, and heat (such as hot weather or hot baths).

• #37 Headaches

  https://www.rch.org.au/kidsinfo/fact_sheets/Headaches_in_children_and_teenagers/

• #38 Cluster headache: MedlinePlus Medical EncyclopediaLock

  https://medlineplus.gov/ency/article/000786.htm

  A cluster headache is an uncommon type of headache. It is one-sided head pain that may involve tearing of the eyes, a droopy eyelid, and a stuffy nose. […] Doctors do not know exactly what causes cluster headaches. They seem to be related to the body’s sudden release of histamine (chemical in the body released during an allergic response) or serotonin (chemical made by nerve cells) in the area of a nerve in the face called the trigeminal nerve. A problem in a small area at the base of the brain called the hypothalamus may be involved. […] More men than women are affected. The headaches can occur at any age, but are most common in the 20s through middle age. They tend to run in families. […] Cluster headaches may be triggered by: Alcohol, Cigarette smoking, High altitudes (trekking and air travel), Bright light (including sunlight), Exertion (physical activity), Heat (hot weather or hot baths), Foods high in nitrites (bacon and preserved meats), Certain medicines, Cocaine.

• #39 The Complete Headache Chart | National Headache Foundation

  https://headaches.org/resources/the-complete-headache-chart/

  Depression and Headache: Precipitating Factors: Causes can originate from a wide variety of complaints that can be categorized as physical, emotional, and psychic. […] Eyestrain Headache: Precipitating Factors: Uncorrected or miscorrected vision, astigmatism, or difficulty with convergence. […] Exertional Headache: Precipitating Factors: Triggered by strenuous physical exertion (running, jumping, orgasm), or passive exertion (coughing, sneezing, or straining for a bowel movement). […] Fasting Headache: Precipitating Factors: Caused by fasting > 16 hours. […] Fever Headache: Precipitating Factors: Caused by infection. […] Giant Cell Arteritis: Precipitating Factors: Vascular disease characterized by inflammation of the blood vessels. […] Hangover Headache: Precipitating Factors: Alcohol, which causes dilation and irritation of the blood vessels of the brain and surrounding tissue.

• #40 The Complete Headache Chart | National Headache Foundation

  https://headaches.org/resources/the-complete-headache-chart/

  Headache Attributed to Infection: Precipitating Factors: Caused by infections. […] Hemiplegic Migraine: Precipitating Factors: Hemiplegic migraine has a strong genetic component. […] Hunger Headache: Precipitating Factors: Strenuous dieting or skipping meals. […] Hypertension Headache: Precipitating Factors: Severe hypertension ≥ 200mm Hg systolic and ≥ 110 diastolic. […] Menstrual Headache: Precipitating Factors: Hormonal fluctuations. […] Migraine with Aura: Precipitating Factors: Same as migraine without aura. […] Migraine without Aura: Precipitating Factors: Certain foods, hormones in women, excessive hunger, changes in altitude, weather, bright lights, odors, and emotional stress. […] New Daily Persistent Headache: Precipitating Factors: Typically NDPH does not evolve from migraine or episodic tension-type headache.

• #41 The Complete Headache Chart | National Headache Foundation

  https://headaches.org/resources/the-complete-headache-chart/

  Depression and Headache: Precipitating Factors: Causes can originate from a wide variety of complaints that can be categorized as physical, emotional, and psychic. […] Eyestrain Headache: Precipitating Factors: Uncorrected or miscorrected vision, astigmatism, or difficulty with convergence. […] Exertional Headache: Precipitating Factors: Triggered by strenuous physical exertion (running, jumping, orgasm), or passive exertion (coughing, sneezing, or straining for a bowel movement). […] Fasting Headache: Precipitating Factors: Caused by fasting > 16 hours. […] Fever Headache: Precipitating Factors: Caused by infection. […] Giant Cell Arteritis: Precipitating Factors: Vascular disease characterized by inflammation of the blood vessels. […] Hangover Headache: Precipitating Factors: Alcohol, which causes dilation and irritation of the blood vessels of the brain and surrounding tissue.

• #42 The Complete Headache Chart | National Headache Foundation

  https://headaches.org/resources/the-complete-headache-chart/

  Headache Attributed to Infection: Precipitating Factors: Caused by infections. […] Hemiplegic Migraine: Precipitating Factors: Hemiplegic migraine has a strong genetic component. […] Hunger Headache: Precipitating Factors: Strenuous dieting or skipping meals. […] Hypertension Headache: Precipitating Factors: Severe hypertension ≥ 200mm Hg systolic and ≥ 110 diastolic. […] Menstrual Headache: Precipitating Factors: Hormonal fluctuations. […] Migraine with Aura: Precipitating Factors: Same as migraine without aura. […] Migraine without Aura: Precipitating Factors: Certain foods, hormones in women, excessive hunger, changes in altitude, weather, bright lights, odors, and emotional stress. […] New Daily Persistent Headache: Precipitating Factors: Typically NDPH does not evolve from migraine or episodic tension-type headache.

• #43 Headache

  https://www.mayoclinic.org/symptoms/headache/basics/causes/sym-20050800

  Possible causes of secondary headaches include: Acute sinusitis, Arterial tears (carotid or vertebral dissections), Blood clot (venous thrombosis) within the brain separate from stroke, Brain aneurysm, Brain AVM (arteriovenous malformation), Brain tumor, Carbon monoxide poisoning, Chiari malformation (structural problem at the base of your skull), Concussion, Coronavirus disease 2019 (COVID-19), Dehydration when the body doesn’t have enough water and other fluids to work as it should, Dental problems, Ear infection (middle ear), Encephalitis (brain inflammation), Giant cell arteritis (inflammation of the lining of the arteries), Glaucoma (acute angle closure glaucoma), Hangovers, High blood pressure (hypertension), Influenza (flu) and other febrile (fever) illnesses, Intracranial hematoma, Medications to treat other disorders, Meningitis, Monosodium glutamate (MSG), Overuse of pain medication, Panic attacks and panic disorder, Persistent post-concussive symptoms (Post-concussion syndrome), Pressure from tight headgear, such as a helmet or goggles, Pseudotumor cerebri (idiopathic intracranial hypertension), Stroke, Toxoplasmosis, Trigeminal neuralgia (as well as other neuralgias, all involving irritation of certain nerves connecting the face and brain).

• #44 Headache Information, Causes, and Symptoms

  https://www.healthline.com/health/headache

  Often, stress and disruptions in your sleep patterns cause these headaches. […] Secondary headaches manifest as a symptom of another health disorder. Different types of illnesses and disorders can cause a headache, including: infection, medication overuse, high blood pressure, mental health conditions, head injury or trauma, stroke, tumor, nerve disorders, sinus congestion. […] The long-term and excessive use of medication to treat a headache can cause medication-overuse headache (MOH). This condition is considered a secondary headache disorder. […] A 2022 review indicated MOH as a factor in people who experience disability from chronic migraine, since the medication they take to treat their migraine headaches leads to more headaches. […] The cause of migraine headaches may be a combination of factors, but researchers believe it may also be due to changes in the activity of the brain’s nerve pathways and chemicals.

• #45 Headache – Wikipedia

  https://en.wikipedia.org/wiki/Headache

  More serious causes of secondary headaches include the following: meningitis, ischemic stroke or a previous stage of the same, hemorrhagic stroke or a previous stage of the same, intracranial hemorrhage (bleeding inside the brain) because of any origin, subarachnoid hemorrhage (with acute, severe headache, stiff neck without fever) because of any origin, intraparenchymal hemorrhage (with headache only) because of any origin, ruptured aneurysm or aneurysm, brain tumor (a form of cancer): dull headache, worse with exertion and change in position, accompanied by nausea and vomiting. […] Gastrointestinal disorders may cause headaches, including Helicobacter pylori infection, celiac disease, non-celiac gluten sensitivity, irritable bowel syndrome, inflammatory bowel disease, gastroparesis, and hepatobiliary disorders. […] The excessive use of painkillers can paradoxically cause worsening painkiller headaches.

• #46 Acute Headache – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK554510/

  Headaches are broadly classified as primary or secondary. Primary headaches are those with no identifiable underlying cause. Secondary headaches are the result of other underlying pathology. […] The International Classification of Headache Disorders (ICHD-III) classifies headaches. These categories are: Primary headache, including tension, migraine, and cluster; Secondary headache, including potentially life-threatening etiologies such as traumatic brain injury and vascular disorders; Cranial neuropathies, such as trigeminal neuralgia. […] Headache can be a symptom of many underlying pathologies, some of which can lead to severe disability and mortality. The emergency clinician should be especially familiar with the following conditions: Hypertensive emergencies, Idiopathic intracranial hypertension, Carotid or vertebrobasilar dissection, Space occupying lesions (tumors, abscesses, cysts), Acute hydrocephalus, Dural sinus thrombosis, Intracranial hemorrhage, Giant cell (temporal) arteritis, Cerebrovascular accident or stroke, Meningitis and encephalitis, Carbon monoxide poisoning, Toxin exposure or withdrawal, Acute angle-closure glaucoma, Medication overuse headache.

• #47 Headache – Wikipedia

  https://en.wikipedia.org/wiki/Headache

  More serious causes of secondary headaches include the following: meningitis, ischemic stroke or a previous stage of the same, hemorrhagic stroke or a previous stage of the same, intracranial hemorrhage (bleeding inside the brain) because of any origin, subarachnoid hemorrhage (with acute, severe headache, stiff neck without fever) because of any origin, intraparenchymal hemorrhage (with headache only) because of any origin, ruptured aneurysm or aneurysm, brain tumor (a form of cancer): dull headache, worse with exertion and change in position, accompanied by nausea and vomiting. […] Gastrointestinal disorders may cause headaches, including Helicobacter pylori infection, celiac disease, non-celiac gluten sensitivity, irritable bowel syndrome, inflammatory bowel disease, gastroparesis, and hepatobiliary disorders. […] The excessive use of painkillers can paradoxically cause worsening painkiller headaches.

• #48 Headache: MedlinePlus Medical EncyclopediaLock

  https://medlineplus.gov/ency/article/003024.htm

  Other types of headaches: Cluster headache is a sharp, very painful headache that occurs daily, sometimes up to several times a day for months. […] Sinus headache causes pain in the front of the head and face. It is due to swelling in the sinus passages behind the cheeks, nose, and eyes. […] In rare cases, a headache can be a sign of something more serious, such as: Bleeding in the area between the brain and the thin tissue that covers the brain (subarachnoid hemorrhage) […] Blood pressure that is very high (hypertension) […] Brain infection, such as meningitis or encephalitis, or abscess […] Brain tumor […] Buildup of fluid inside the skull that leads to brain swelling (hydrocephalus) […] Buildup of pressure inside the skull that appears to be, but is not a tumor (pseudotumor cerebri) […] Carbon monoxide poisoning […] Lack of oxygen during sleep (sleep apnea) […] Problems with the blood vessels and bleeding in the brain, such as arteriovenous malformation (AVM), brain aneurysm, or stroke.

• #49 Headache | Better Health Channel

  https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/headache

  Disorders of the ear, nose and throat that can cause recurring headache include: sinus problems, labyrinthitis, infection, trauma, hay fever, tonsillitis. […] Irritated, inflamed or damaged nerves can bring on a headache. […] Cluster headaches are relatively uncommon and tend to mainly affect men. […] Headache can be caused by many contributing factors working together. […] Successfully treating chronic headache usually requires a combined approach that takes all the triggers for a person into account.

• #50 The Complete Headache Chart | National Headache Foundation

  https://headaches.org/resources/the-complete-headache-chart/

  Depression and Headache: Precipitating Factors: Causes can originate from a wide variety of complaints that can be categorized as physical, emotional, and psychic. […] Eyestrain Headache: Precipitating Factors: Uncorrected or miscorrected vision, astigmatism, or difficulty with convergence. […] Exertional Headache: Precipitating Factors: Triggered by strenuous physical exertion (running, jumping, orgasm), or passive exertion (coughing, sneezing, or straining for a bowel movement). […] Fasting Headache: Precipitating Factors: Caused by fasting > 16 hours. […] Fever Headache: Precipitating Factors: Caused by infection. […] Giant Cell Arteritis: Precipitating Factors: Vascular disease characterized by inflammation of the blood vessels. […] Hangover Headache: Precipitating Factors: Alcohol, which causes dilation and irritation of the blood vessels of the brain and surrounding tissue.

• #51 Headache | Better Health Channel

  https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/headache

  Disorders of the ear, nose and throat that can cause recurring headache include: sinus problems, labyrinthitis, infection, trauma, hay fever, tonsillitis. […] Irritated, inflamed or damaged nerves can bring on a headache. […] Cluster headaches are relatively uncommon and tend to mainly affect men. […] Headache can be caused by many contributing factors working together. […] Successfully treating chronic headache usually requires a combined approach that takes all the triggers for a person into account.

• #52 Headache | National Institute of Neurological Disorders and Stroke

  https://www.ninds.nih.gov/health-information/disorders/headache

  The brain itself doesn’t feel pain. Often, headaches happen when pain-sensitive nerve endings (or neurons) respond to triggers or signals in our bodystress, certain foods or smells, or some medicines can cause these signals. […] Headache conditions affect some people more than others. […] Some people may experience a headache attack after eating certain foods. […] Emotional stress (such as from school activities, moving, or family problems) can lead to a headache attack. […] Regular overuse of headache medications can actually worsen headache attacks or cause new headache symptoms. […] The first step in treating a headache is to identify any health conditions that could be causing the headaches. Treating that health condition can also help with any related symptoms, like headaches. […] NINDS-supported research has helped to understand the long-term effects of COVID-19 infections, known as Long COVID. Headaches are a potential symptom of Long COVID, and researchers are starting to identify nervous and immune system changes that can lead to or complicate the condition.

• #53 Acute Headache – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK554510/

  Headaches are broadly classified as primary or secondary. Primary headaches are those with no identifiable underlying cause. Secondary headaches are the result of other underlying pathology. […] The International Classification of Headache Disorders (ICHD-III) classifies headaches. These categories are: Primary headache, including tension, migraine, and cluster; Secondary headache, including potentially life-threatening etiologies such as traumatic brain injury and vascular disorders; Cranial neuropathies, such as trigeminal neuralgia. […] Headache can be a symptom of many underlying pathologies, some of which can lead to severe disability and mortality. The emergency clinician should be especially familiar with the following conditions: Hypertensive emergencies, Idiopathic intracranial hypertension, Carotid or vertebrobasilar dissection, Space occupying lesions (tumors, abscesses, cysts), Acute hydrocephalus, Dural sinus thrombosis, Intracranial hemorrhage, Giant cell (temporal) arteritis, Cerebrovascular accident or stroke, Meningitis and encephalitis, Carbon monoxide poisoning, Toxin exposure or withdrawal, Acute angle-closure glaucoma, Medication overuse headache.

• #54 Acute Headache – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK554510/

  Headaches are broadly classified as primary or secondary. Primary headaches are those with no identifiable underlying cause. Secondary headaches are the result of other underlying pathology. […] The International Classification of Headache Disorders (ICHD-III) classifies headaches. These categories are: Primary headache, including tension, migraine, and cluster; Secondary headache, including potentially life-threatening etiologies such as traumatic brain injury and vascular disorders; Cranial neuropathies, such as trigeminal neuralgia. […] Headache can be a symptom of many underlying pathologies, some of which can lead to severe disability and mortality. The emergency clinician should be especially familiar with the following conditions: Hypertensive emergencies, Idiopathic intracranial hypertension, Carotid or vertebrobasilar dissection, Space occupying lesions (tumors, abscesses, cysts), Acute hydrocephalus, Dural sinus thrombosis, Intracranial hemorrhage, Giant cell (temporal) arteritis, Cerebrovascular accident or stroke, Meningitis and encephalitis, Carbon monoxide poisoning, Toxin exposure or withdrawal, Acute angle-closure glaucoma, Medication overuse headache.

• #55 Headache

  https://www.mayoclinic.org/symptoms/headache/basics/causes/sym-20050800

  Possible causes of secondary headaches include: Acute sinusitis, Arterial tears (carotid or vertebral dissections), Blood clot (venous thrombosis) within the brain separate from stroke, Brain aneurysm, Brain AVM (arteriovenous malformation), Brain tumor, Carbon monoxide poisoning, Chiari malformation (structural problem at the base of your skull), Concussion, Coronavirus disease 2019 (COVID-19), Dehydration when the body doesn’t have enough water and other fluids to work as it should, Dental problems, Ear infection (middle ear), Encephalitis (brain inflammation), Giant cell arteritis (inflammation of the lining of the arteries), Glaucoma (acute angle closure glaucoma), Hangovers, High blood pressure (hypertension), Influenza (flu) and other febrile (fever) illnesses, Intracranial hematoma, Medications to treat other disorders, Meningitis, Monosodium glutamate (MSG), Overuse of pain medication, Panic attacks and panic disorder, Persistent post-concussive symptoms (Post-concussion syndrome), Pressure from tight headgear, such as a helmet or goggles, Pseudotumor cerebri (idiopathic intracranial hypertension), Stroke, Toxoplasmosis, Trigeminal neuralgia (as well as other neuralgias, all involving irritation of certain nerves connecting the face and brain).

• #56 The Complete Headache Chart | National Headache Foundation

  https://headaches.org/resources/the-complete-headache-chart/

  Post-Traumatic Headaches: Precipitating Factors: Pain can occur after relatively minor traumas. […] Sinus Headache: Precipitating Factors: Infection, nasal polyps, anatomical deformities, such as a deviated septum, that block the sinus ducts. […] Temporo-Mandibular Joint Dysfunction (TMD) Headache: Precipitating Factors: Pathology can be in the joint or in the muscles of chewing. […] Tension-Type Headache: Precipitating Factors: Stress, depression. […] Trigeminal Neuralgia (Tic Douloureux): Precipitating Factors: Often triggered by touching the face. Often caused by abnormal artery loop compressing the trigeminal nerve. […] Thunderclap Headache: Precipitating Factors: Thunderclap Headache may be due to a benign syndrome or a potentially life-threatening condition. […] Tumor Headache: Precipitating Factors: Cause of tumor is usually unknown.

• #57 The Complete Headache Chart | National Headache Foundation

  https://headaches.org/resources/the-complete-headache-chart/

  Post-Traumatic Headaches: Precipitating Factors: Pain can occur after relatively minor traumas. […] Sinus Headache: Precipitating Factors: Infection, nasal polyps, anatomical deformities, such as a deviated septum, that block the sinus ducts. […] Temporo-Mandibular Joint Dysfunction (TMD) Headache: Precipitating Factors: Pathology can be in the joint or in the muscles of chewing. […] Tension-Type Headache: Precipitating Factors: Stress, depression. […] Trigeminal Neuralgia (Tic Douloureux): Precipitating Factors: Often triggered by touching the face. Often caused by abnormal artery loop compressing the trigeminal nerve. […] Thunderclap Headache: Precipitating Factors: Thunderclap Headache may be due to a benign syndrome or a potentially life-threatening condition. […] Tumor Headache: Precipitating Factors: Cause of tumor is usually unknown.

• #58 Headache

  https://www.mayoclinic.org/symptoms/headache/basics/causes/sym-20050800

  Possible causes of secondary headaches include: Acute sinusitis, Arterial tears (carotid or vertebral dissections), Blood clot (venous thrombosis) within the brain separate from stroke, Brain aneurysm, Brain AVM (arteriovenous malformation), Brain tumor, Carbon monoxide poisoning, Chiari malformation (structural problem at the base of your skull), Concussion, Coronavirus disease 2019 (COVID-19), Dehydration when the body doesn’t have enough water and other fluids to work as it should, Dental problems, Ear infection (middle ear), Encephalitis (brain inflammation), Giant cell arteritis (inflammation of the lining of the arteries), Glaucoma (acute angle closure glaucoma), Hangovers, High blood pressure (hypertension), Influenza (flu) and other febrile (fever) illnesses, Intracranial hematoma, Medications to treat other disorders, Meningitis, Monosodium glutamate (MSG), Overuse of pain medication, Panic attacks and panic disorder, Persistent post-concussive symptoms (Post-concussion syndrome), Pressure from tight headgear, such as a helmet or goggles, Pseudotumor cerebri (idiopathic intracranial hypertension), Stroke, Toxoplasmosis, Trigeminal neuralgia (as well as other neuralgias, all involving irritation of certain nerves connecting the face and brain).

• #59 Headache Information, Causes, and Symptoms

  https://www.healthline.com/health/headache

  Often, stress and disruptions in your sleep patterns cause these headaches. […] Secondary headaches manifest as a symptom of another health disorder. Different types of illnesses and disorders can cause a headache, including: infection, medication overuse, high blood pressure, mental health conditions, head injury or trauma, stroke, tumor, nerve disorders, sinus congestion. […] The long-term and excessive use of medication to treat a headache can cause medication-overuse headache (MOH). This condition is considered a secondary headache disorder. […] A 2022 review indicated MOH as a factor in people who experience disability from chronic migraine, since the medication they take to treat their migraine headaches leads to more headaches. […] The cause of migraine headaches may be a combination of factors, but researchers believe it may also be due to changes in the activity of the brain’s nerve pathways and chemicals.

• #60 The Complete Headache Chart | National Headache Foundation

  https://headaches.org/resources/the-complete-headache-chart/

  Allergy Headache: Precipitating Factors: Seasonal allergens, such as pollen, molds. Allergies to food are not usually a factor. […] Aneurysm/Subarachnoid Hemorrhage: Precipitating Factors: Caused by weakness or bulge in blood vessel at the base of the brain. May rupture or allow blood to leak leading to a hemorrhagic stroke. […] Caffeine-Withdrawal Headache: Precipitating Factors: Caffeine consumption. […] Cervicogenic Headache: Precipitating Factors: Injury to the neck, malformations of the cervical vertebrae, arthritis of the upper spine. […] Chronic Daily Headache: Precipitating Factors: Typically evolve from transformed migraine. […] Chronic Migraine: Precipitating Factors: Medication Overuse Headache (MOH) and poorly controlled episodic migraine. […] Cluster Headache: Precipitating Factors: May be inherited in 5% of cases. During cluster, attacks may be provoked by alcohol.

• #61 Headache Information, Causes, and Symptoms

  https://www.healthline.com/health/headache

  Often, stress and disruptions in your sleep patterns cause these headaches. […] Secondary headaches manifest as a symptom of another health disorder. Different types of illnesses and disorders can cause a headache, including: infection, medication overuse, high blood pressure, mental health conditions, head injury or trauma, stroke, tumor, nerve disorders, sinus congestion. […] The long-term and excessive use of medication to treat a headache can cause medication-overuse headache (MOH). This condition is considered a secondary headache disorder. […] A 2022 review indicated MOH as a factor in people who experience disability from chronic migraine, since the medication they take to treat their migraine headaches leads to more headaches. […] The cause of migraine headaches may be a combination of factors, but researchers believe it may also be due to changes in the activity of the brain’s nerve pathways and chemicals.

• #62 The Complete Headache Chart | National Headache Foundation

  https://headaches.org/resources/the-complete-headache-chart/

  Allergy Headache: Precipitating Factors: Seasonal allergens, such as pollen, molds. Allergies to food are not usually a factor. […] Aneurysm/Subarachnoid Hemorrhage: Precipitating Factors: Caused by weakness or bulge in blood vessel at the base of the brain. May rupture or allow blood to leak leading to a hemorrhagic stroke. […] Caffeine-Withdrawal Headache: Precipitating Factors: Caffeine consumption. […] Cervicogenic Headache: Precipitating Factors: Injury to the neck, malformations of the cervical vertebrae, arthritis of the upper spine. […] Chronic Daily Headache: Precipitating Factors: Typically evolve from transformed migraine. […] Chronic Migraine: Precipitating Factors: Medication Overuse Headache (MOH) and poorly controlled episodic migraine. […] Cluster Headache: Precipitating Factors: May be inherited in 5% of cases. During cluster, attacks may be provoked by alcohol.

• #63 Headache | Better Health Channel

  https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/headache

  Headaches are very common, with around 15% of Australians taking pain-relieving medication for headache at any given time. […] There are different types of recurring headache and many causes, so it is important to seek diagnosis from a qualified health professional. […] Causes of headache can include stress, medications, diet, jaw problems, and illnesses of the eye, ear, nose and throat. […] Anything that stimulates the pain receptors in a persons head or neck can cause a headache, including: stress, muscular tension, dental or jaw problems, infections, diet, eye problems, hormonal influences, medications, disorders of the ear, nose or throat, disorders of the nervous system, injury to the head, neck or spine, high blood pressure, poor posture, hangover from abuse of alcohol or drugs, temperature extremes, dehydration, noise, temporal arteritis, arthritis, meningitis.

• #64 Headache – Wikipedia

  https://en.wikipedia.org/wiki/Headache

  More serious causes of secondary headaches include the following: meningitis, ischemic stroke or a previous stage of the same, hemorrhagic stroke or a previous stage of the same, intracranial hemorrhage (bleeding inside the brain) because of any origin, subarachnoid hemorrhage (with acute, severe headache, stiff neck without fever) because of any origin, intraparenchymal hemorrhage (with headache only) because of any origin, ruptured aneurysm or aneurysm, brain tumor (a form of cancer): dull headache, worse with exertion and change in position, accompanied by nausea and vomiting. […] Gastrointestinal disorders may cause headaches, including Helicobacter pylori infection, celiac disease, non-celiac gluten sensitivity, irritable bowel syndrome, inflammatory bowel disease, gastroparesis, and hepatobiliary disorders. […] The excessive use of painkillers can paradoxically cause worsening painkiller headaches.

• #65 Headache | Better Health Channel

  https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/headache

  Headaches are very common, with around 15% of Australians taking pain-relieving medication for headache at any given time. […] There are different types of recurring headache and many causes, so it is important to seek diagnosis from a qualified health professional. […] Causes of headache can include stress, medications, diet, jaw problems, and illnesses of the eye, ear, nose and throat. […] Anything that stimulates the pain receptors in a persons head or neck can cause a headache, including: stress, muscular tension, dental or jaw problems, infections, diet, eye problems, hormonal influences, medications, disorders of the ear, nose or throat, disorders of the nervous system, injury to the head, neck or spine, high blood pressure, poor posture, hangover from abuse of alcohol or drugs, temperature extremes, dehydration, noise, temporal arteritis, arthritis, meningitis.

• #66 Headache – Wikipedia

  https://en.wikipedia.org/wiki/Headache

  More serious causes of secondary headaches include the following: meningitis, ischemic stroke or a previous stage of the same, hemorrhagic stroke or a previous stage of the same, intracranial hemorrhage (bleeding inside the brain) because of any origin, subarachnoid hemorrhage (with acute, severe headache, stiff neck without fever) because of any origin, intraparenchymal hemorrhage (with headache only) because of any origin, ruptured aneurysm or aneurysm, brain tumor (a form of cancer): dull headache, worse with exertion and change in position, accompanied by nausea and vomiting. […] Gastrointestinal disorders may cause headaches, including Helicobacter pylori infection, celiac disease, non-celiac gluten sensitivity, irritable bowel syndrome, inflammatory bowel disease, gastroparesis, and hepatobiliary disorders. […] The excessive use of painkillers can paradoxically cause worsening painkiller headaches.

• #67 Headache Information, Causes, and Symptoms

  https://www.healthline.com/health/headache

  Migraine headaches can be predictable because some start with an aura. […] Migraine is classified as: a moderate-to-severe headache, one-sided, pulsating, aggravated by routine physical activity, lasts hours to 2 to 3 days. […] Migraine and other types of headaches can be triggered by things like diet, activity, and environmental factors. Common triggers include: activity, alcohol, allergy or sinuses, auditory, emotion, food or eating, hormones, medications, trauma, changes in sleep habits, smells, stress, environment, motion from a vehicle, visual.

• #68 Headache | Better Health Channel

  https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/headache

  Tension headache is the most common type of headache. […] Stress can cause or worsen a headache in a number of ways, including: tightening the muscles, particularly of the upper back, shoulders, neck and head; lowering a persons tolerance to pain; reducing the effects of medications such as pain-relievers; reducing the levels of endorphins, which are the bodys natural pain-relieving chemicals. […] Many infections of the nose, throat and ear can cause headache. […] According to some studies, what we eat and when we eat it can play a significant role in headache. […] If a person has difficulties with their vision, such as long-sightedness, they tend to squint and strain their eye muscles in order to better focus their vision. […] Medications are designed for a particular target in the body, such as a diseased organ.

• #69 10 Surprising Causes of Constant Headaches | SELF

  https://www.self.com/story/constant-headaches-health-meaning

  It’s not totally clear what causes migraines, but its possible that they have to do with changes in the brainstem and its interactions with the trigeminal nerve. […] Experts believe migraines are primarily genetic. […] Tension headaches can be caused by everything from dehydration to undiagnosed diabetes or an autoimmune disease. But stress is the most commonly reported trigger for tension headaches. […] If you’re experiencing constant headaches, chances are they’re either tension headaches or migraines. […] The causes of constant headacheswhether tension or migrainerange from totally minor to pretty major. […] „Unresolved stress can really contribute to headache,” Dr. Hutchinson says. […] This can be a physical response that your body has to stress and anxiety. […] One important thing to look at is water intake, as dehydration can cause headaches. […] Lower blood volume means less oxygen is getting to the brain.

• #70 Headache | Better Health Channel

  https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/headache

  Tension headache is the most common type of headache. […] Stress can cause or worsen a headache in a number of ways, including: tightening the muscles, particularly of the upper back, shoulders, neck and head; lowering a persons tolerance to pain; reducing the effects of medications such as pain-relievers; reducing the levels of endorphins, which are the bodys natural pain-relieving chemicals. […] Many infections of the nose, throat and ear can cause headache. […] According to some studies, what we eat and when we eat it can play a significant role in headache. […] If a person has difficulties with their vision, such as long-sightedness, they tend to squint and strain their eye muscles in order to better focus their vision. […] Medications are designed for a particular target in the body, such as a diseased organ.

• #71 What’s Causing Your Headaches? Common Triggers Explained

  https://www.templehealth.org/about/blog/whats-causing-your-headaches

  When you do not sleep well, you can experience headaches the following day. […] Sometimes, when you finally are done with a stressful event, like taking a test or completing a hard workweek, you may find that when you try to relax, you experience a headache. […] Many patients report that migraine headaches are triggered by food or food ingredients. […] If you start experiencing frequent migraines, make note of what you’re eating on those days. […] For both tension and migraine headaches, I usually tell patients to think about some of the triggers that may be causing their pain. […] Taking over-the-counter remedies too often can in fact make headaches more likely to come back. […] There are times when a headache may point to a more serious underlying cause.

• #72 Headache | Better Health Channel

  https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/headache

  Tension headache is the most common type of headache. […] Stress can cause or worsen a headache in a number of ways, including: tightening the muscles, particularly of the upper back, shoulders, neck and head; lowering a persons tolerance to pain; reducing the effects of medications such as pain-relievers; reducing the levels of endorphins, which are the bodys natural pain-relieving chemicals. […] Many infections of the nose, throat and ear can cause headache. […] According to some studies, what we eat and when we eat it can play a significant role in headache. […] If a person has difficulties with their vision, such as long-sightedness, they tend to squint and strain their eye muscles in order to better focus their vision. […] Medications are designed for a particular target in the body, such as a diseased organ.

• #73 The Complete Headache Chart | National Headache Foundation

  https://headaches.org/resources/the-complete-headache-chart/

  Headache Attributed to Infection: Precipitating Factors: Caused by infections. […] Hemiplegic Migraine: Precipitating Factors: Hemiplegic migraine has a strong genetic component. […] Hunger Headache: Precipitating Factors: Strenuous dieting or skipping meals. […] Hypertension Headache: Precipitating Factors: Severe hypertension ≥ 200mm Hg systolic and ≥ 110 diastolic. […] Menstrual Headache: Precipitating Factors: Hormonal fluctuations. […] Migraine with Aura: Precipitating Factors: Same as migraine without aura. […] Migraine without Aura: Precipitating Factors: Certain foods, hormones in women, excessive hunger, changes in altitude, weather, bright lights, odors, and emotional stress. […] New Daily Persistent Headache: Precipitating Factors: Typically NDPH does not evolve from migraine or episodic tension-type headache.

• #74 Headache | Better Health Channel

  https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/headache

  Tension headache is the most common type of headache. […] Stress can cause or worsen a headache in a number of ways, including: tightening the muscles, particularly of the upper back, shoulders, neck and head; lowering a persons tolerance to pain; reducing the effects of medications such as pain-relievers; reducing the levels of endorphins, which are the bodys natural pain-relieving chemicals. […] Many infections of the nose, throat and ear can cause headache. […] According to some studies, what we eat and when we eat it can play a significant role in headache. […] If a person has difficulties with their vision, such as long-sightedness, they tend to squint and strain their eye muscles in order to better focus their vision. […] Medications are designed for a particular target in the body, such as a diseased organ.

• #75 Causes and Diagnoses of Headaches | Northwestern Medicine

  https://www.nm.org/conditions-and-care-areas/neurosciences/headaches/causes-and-diagnoses

  Headaches may be caused by: […] Anxiety: Stress may bring on headaches […] Glare: Does the brightness from your computer screen, sunlight or overhead lights make your head hurt? […] Noise: Sound, from loud and repetitive to continuous low-level noise, can cause headache pain […] Eating and sleeping patterns: Being hungry can cause headaches, as can lack of sleep […] Medication: Certain prescriptions can trigger headaches […] Physical activity: Sometimes over-exertion can give you a headache from the swelling of blood vessels in your head, neck and scalp […] Lack of physical activity: Staying sedentary can also give you a headache. […] Hormones: If estrogen levels drop, women may be more likely to get headaches […] Food sensitivities: Food and drink release neurotransmitters that can lead to headaches. Common triggers include aspartame, caffeine, chocolate, alcohol and cheese.

• #76 Headaches – Types, Causes, Symptoms, Diagnosis, Treatment

  https://www.webmd.com/migraines-headaches/migraines-headaches-basics

  What Causes Headaches? […] Common causes of headaches include: […] Illness. This can include infections, colds, and fevers. Headaches are also common with conditions such as sinusitis (inflammation of the sinuses), a throat infection, or an ear infection. In some cases, headaches can result from a blow to the head. Rarely, they can be a sign of a more serious medical problem. […] Stress. Emotional stress and depression, as well as alcohol use, skipping meals, changes in sleep patterns, and taking too much medication, can trigger headaches. Other causes include neck or back strain due to poor posture. […] Your environment. This includes secondhand tobacco smoke, strong smells from household chemicals or perfumes, allergens, and certain foods. Stress, pollution, noise, lighting, and weather changes are other possible triggers.

• #77 Exploring the Root Causes of Headaches – Morgan Medical Center

  https://morganmedical.org/blog/exploring-root-causes-headaches/

  Headaches are considered the most common form of pain people experience, often leading to absences from school or work. […] Different types of headaches may have specific triggers. […] For 80% of people who experience migraines, stress is an unfortunate trigger for headaches. […] Researchers are finding an increased association between sleep issues and several types of headaches. […] Nearly two-thirds of women who experience migraines report an onset of symptoms with their menstrual period. […] Changes in estrogen levels can lead to new or worsening headaches. […] Smoke, humidity, and even cold weather have been linked to migraines, while people who experience cluster headaches often report symptoms during the change of seasons.

• #78 Headaches – Types, Causes, Symptoms, Diagnosis, Treatment

  https://www.webmd.com/migraines-headaches/migraines-headaches-basics

  What Causes Headaches? […] Common causes of headaches include: […] Illness. This can include infections, colds, and fevers. Headaches are also common with conditions such as sinusitis (inflammation of the sinuses), a throat infection, or an ear infection. In some cases, headaches can result from a blow to the head. Rarely, they can be a sign of a more serious medical problem. […] Stress. Emotional stress and depression, as well as alcohol use, skipping meals, changes in sleep patterns, and taking too much medication, can trigger headaches. Other causes include neck or back strain due to poor posture. […] Your environment. This includes secondhand tobacco smoke, strong smells from household chemicals or perfumes, allergens, and certain foods. Stress, pollution, noise, lighting, and weather changes are other possible triggers.

• #79 Exploring the Root Causes of Headaches – Morgan Medical Center

  https://morganmedical.org/blog/exploring-root-causes-headaches/

  Headaches are considered the most common form of pain people experience, often leading to absences from school or work. […] Different types of headaches may have specific triggers. […] For 80% of people who experience migraines, stress is an unfortunate trigger for headaches. […] Researchers are finding an increased association between sleep issues and several types of headaches. […] Nearly two-thirds of women who experience migraines report an onset of symptoms with their menstrual period. […] Changes in estrogen levels can lead to new or worsening headaches. […] Smoke, humidity, and even cold weather have been linked to migraines, while people who experience cluster headaches often report symptoms during the change of seasons.

• #80 Understanding Headache Causes, Treatment & Prevention | TYLENOL®

  https://www.tylenol.com/adult-relief/headaches/causes-treatment-prevention

  Inflamed sinuses, a common result of allergies or infections, can lead to a sinus headache with facial discomfort and pressure. […] A lack of sleep can add undue stress and anxiety, leading to a fatigue headache. […] This one’s a close cousin to stress and can bring on muscle tension and headaches. […] Skipping meals and not getting enough rest can throw off the body’s equilibrium and deprive you of much-needed recovery and important nutrients, bringing on headaches. […] Certain food and drinks can act as triggers for headaches or migraines. It’s important to learn to recognize your own triggers so you can avoid them. […] Fluctuating hormone levels during menstrual cycles, pregnancy, or menopause can up the frequency and intensity of headaches. […] Long periods of sitting and using technology can negatively impact posture and create neck pain, causing headaches of varying severity.

• #81 The Complete Headache Chart | National Headache Foundation

  https://headaches.org/resources/the-complete-headache-chart/

  Headache Attributed to Infection: Precipitating Factors: Caused by infections. […] Hemiplegic Migraine: Precipitating Factors: Hemiplegic migraine has a strong genetic component. […] Hunger Headache: Precipitating Factors: Strenuous dieting or skipping meals. […] Hypertension Headache: Precipitating Factors: Severe hypertension ≥ 200mm Hg systolic and ≥ 110 diastolic. […] Menstrual Headache: Precipitating Factors: Hormonal fluctuations. […] Migraine with Aura: Precipitating Factors: Same as migraine without aura. […] Migraine without Aura: Precipitating Factors: Certain foods, hormones in women, excessive hunger, changes in altitude, weather, bright lights, odors, and emotional stress. […] New Daily Persistent Headache: Precipitating Factors: Typically NDPH does not evolve from migraine or episodic tension-type headache.

• #82 Understanding Headache Causes, Treatment & Prevention | TYLENOL®

  https://www.tylenol.com/adult-relief/headaches/causes-treatment-prevention

  Inflamed sinuses, a common result of allergies or infections, can lead to a sinus headache with facial discomfort and pressure. […] A lack of sleep can add undue stress and anxiety, leading to a fatigue headache. […] This one’s a close cousin to stress and can bring on muscle tension and headaches. […] Skipping meals and not getting enough rest can throw off the body’s equilibrium and deprive you of much-needed recovery and important nutrients, bringing on headaches. […] Certain food and drinks can act as triggers for headaches or migraines. It’s important to learn to recognize your own triggers so you can avoid them. […] Fluctuating hormone levels during menstrual cycles, pregnancy, or menopause can up the frequency and intensity of headaches. […] Long periods of sitting and using technology can negatively impact posture and create neck pain, causing headaches of varying severity.

• #83 Migraine causes, symptoms, treatments, and moremenu iconsearch iconsubscribe iconsearch iconarrow up right icon

  https://health.ucdavis.edu/blog/cultivating-health/migraine-causes-symptoms-treatments-and-more/2022/12

  Migraines are likely caused by a nerve that inflames the dura, spreading pain and changing local blood flow. […] There may also be genetic causes of migraine. There are multiple triggers that may lead to a migraine attack. Common examples include a drop in estrogen levels (pre-menstruation), alcohol use, stress, cold weather fronts, and sleep deprivation. […] Women are three times more likely to have migraines than men and are more likely to develop chronic migraines. Migraines are more common in the Western Hemisphere, likely for genetic reasons. […] Hormones play a role in migraines. For example, a woman’s menstrual cycle and the onset of menopause can increase migraine risk. Patients who have migraines (especially a certain type called migraine with aura) can be at risk for strokes.

• #84 Headaches

  https://www.nhs.uk/conditions/headaches/

  Most headaches go away on their own and are not a sign of something more serious. […] Common causes of headaches include: […] having a cold or flu […] stress […] drinking too much alcohol […] bad posture […] eyesight problems […] not eating regular meals […] not drinking enough fluids (dehydration) […] taking too many painkillers […] having your period or during menopause (hormone headache).

• #85 Headaches – types, causes, migraines, treatment and prevention | healthdirect

  https://www.healthdirect.gov.au/headaches

  Headaches can be primary (when they happen on their own, and not as a result of another health problem) or secondary (resulting from another health problem). […] Common causes of secondary headaches include: acute or chronic sinus infections, eye strain, dental problems, middle ear infections, side effects of some medicines, dehydration. […] Potentially serious health problems that can cause secondary headaches include: aneurysms, high blood pressure, glaucoma, brain tumours, head injuries, meningitis, stroke. […] Sometimes primary headaches can be triggered by dietary factors, such as: alcohol, particularly red wine, certain foods, such as cheese, citrus fruits, processed meats and foods containing monosodium glutamate (MSG), large amounts of caffeine, skipping meals, not drinking enough water. […] Other common triggers include: too much or too little sleep, bad posture, stress or relaxing after stress, too much screen use, bright lights, strong smells or loud noises, sexual intercourse, hormonal changes in females.

• #86 Headaches

  https://www.nhs.uk/conditions/headaches/

  Most headaches go away on their own and are not a sign of something more serious. […] Common causes of headaches include: […] having a cold or flu […] stress […] drinking too much alcohol […] bad posture […] eyesight problems […] not eating regular meals […] not drinking enough fluids (dehydration) […] taking too many painkillers […] having your period or during menopause (hormone headache).

• #87 10 headache triggers

  https://www.nhs.uk/conditions/headaches/10-headache-triggers/

  It’s not just stress and nasty colds that cause headaches. […] Poor posture causes tension in your upper back, neck and shoulders, which can lead to a headache. […] Pressure changes that cause weather changes are thought to trigger chemical and electrical changes in the brain. This irritates nerves, leading to a headache. […] Grinding your teeth at night (the medical name is bruxism) makes your jaw muscles contract, causing a dull headache. […] Bright lights and glare, especially if flickering, can induce migraines. This is because bright and flickering lights boost the levels of certain chemicals in the brain, which then activate the migraine centre. […] All these foods contain chemicals that can bring on a migraine. […] Doctors think sex headaches are due to pressure building up in the head and neck muscles. […] Do you get a sharp, stabbing pain in your forehead when you bite into an ice cream cone? Then you’re susceptible to ice cream headaches, caused by cold material moving across the roof of your mouth and the back of your throat.

• #88 Headache: What It Is, Types, Causes, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/9639-headaches

  Headaches are a very common condition that most people will experience many times during their lives. While most headaches aren’t dangerous, certain types can be a sign of a serious underlying condition. […] Lifestyle factors that can trigger headaches include consuming alcohol or nicotine, changes in sleep, poor posture and more. […] Dysfunction or over-activity of pain-sensitive features in your head cause primary headaches. They’re not a symptom of or caused by an underlying medical condition. Some people may have genes that make them more likely to develop primary headaches. […] An underlying medical condition causes secondary headaches. They’re considered a symptom or sign of a condition. […] Headache pain results from signals interacting among your brain, blood vessels and surrounding nerves. During a headache, multiple mechanisms activate specific nerves that affect muscles and blood vessels. These nerves send pain signals to your brain, causing a headache. […] Headaches tend to run in families, especially migraines. Children who have migraines usually have at least one biological parent who also experiences them. […] Treatment for secondary headaches involves treating the underlying medical condition causing it.

• #89 Headache: What It Is, Types, Causes, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/9639-headaches

  Headaches are a very common condition that most people will experience many times during their lives. While most headaches aren’t dangerous, certain types can be a sign of a serious underlying condition. […] Lifestyle factors that can trigger headaches include consuming alcohol or nicotine, changes in sleep, poor posture and more. […] Dysfunction or over-activity of pain-sensitive features in your head cause primary headaches. They’re not a symptom of or caused by an underlying medical condition. Some people may have genes that make them more likely to develop primary headaches. […] An underlying medical condition causes secondary headaches. They’re considered a symptom or sign of a condition. […] Headache pain results from signals interacting among your brain, blood vessels and surrounding nerves. During a headache, multiple mechanisms activate specific nerves that affect muscles and blood vessels. These nerves send pain signals to your brain, causing a headache. […] Headaches tend to run in families, especially migraines. Children who have migraines usually have at least one biological parent who also experiences them. […] Treatment for secondary headaches involves treating the underlying medical condition causing it.

• #90 Migraine: What It Is, Types, Causes, Symptoms & Treatments

  https://my.clevelandclinic.org/health/diseases/5005-migraine-headaches

  Yes, migraines tend to run in biological families. Up to 80% of people with migraines have a first-degree biological relative with the condition. […] A migraine can affect anyone at any age, from children to adults. Women are more likely than men to experience a migraine. […] Other risk factors that may make you more likely to experience a migraine include: Biological family history of migraines, Underlying medical condition (depression, anxiety, sleep disorders and epilepsy), Regular use of tobacco products.

• #91 Headache: What It Is, Types, Causes, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/9639-headaches

  Headaches are a very common condition that most people will experience many times during their lives. While most headaches aren’t dangerous, certain types can be a sign of a serious underlying condition. […] Lifestyle factors that can trigger headaches include consuming alcohol or nicotine, changes in sleep, poor posture and more. […] Dysfunction or over-activity of pain-sensitive features in your head cause primary headaches. They’re not a symptom of or caused by an underlying medical condition. Some people may have genes that make them more likely to develop primary headaches. […] An underlying medical condition causes secondary headaches. They’re considered a symptom or sign of a condition. […] Headache pain results from signals interacting among your brain, blood vessels and surrounding nerves. During a headache, multiple mechanisms activate specific nerves that affect muscles and blood vessels. These nerves send pain signals to your brain, causing a headache. […] Headaches tend to run in families, especially migraines. Children who have migraines usually have at least one biological parent who also experiences them. […] Treatment for secondary headaches involves treating the underlying medical condition causing it.

• #92 What Causes Migraines? – Migraine Symptoms | familydoctor.org

  https://familydoctor.org/condition/migraine/

  What causes migraines? Researchers do not yet understand all the factors that cause migraines. It appears they may be caused in part by changes in the level of a body chemical called serotonin. Serotonin plays many roles in the body and affects blood vessels. When serotonin levels are high, blood vessels constrict (shrink). When serotonin levels fall, the blood vessels dilate (swell). This swelling can cause pain or other problems. Another cause being studied is that migraine headaches go along with a spreading pattern of electrical activity in the brain. […] Some research suggests there could be a heredity factor for migraines, meaning they may run in families. Researchers have identified some genes associated with migraines. They are unsure why these genes impact some people more than others. The American Migraine Foundation reports that if one of your parents has migraines, there is a 50% chance that you will, too. If both of your parents have migraines, your chances jump up to 75%. Ultimately, migraines seem to be caused by a combination of factors: genetic, environmental, and lifestyle. […] Women are more likely to have chronic migraines (migraines that occur 15 days a month or more). This is likely linked to hormones. Hormones fluctuate each month around the time of your period. They can also fluctuate if you are pregnant or going through menopause.

• #93 Headache

  https://www.mayoclinic.org/symptoms/headache/basics/causes/sym-20050800

  Your headache symptoms can help your doctor determine its cause and the appropriate treatment. Most headaches aren’t the result of a serious illness, but some may result from a life-threatening condition requiring emergency care. […] A primary headache is caused by overactivity of or problems with pain-sensitive structures in your head. A primary headache isn’t a symptom of an underlying disease. […] Chemical activity in your brain, the nerves or blood vessels surrounding your skull, or the muscles of your head and neck (or some combination of these factors) can play a role in primary headaches. Some people may also carry genes that make them more likely to develop such headaches. […] A secondary headache is a symptom of a disease that can activate the pain-sensitive nerves of the head. Any number of conditions varying greatly in severity may cause secondary headaches.

• #94 Types of Headaches: Symptoms, Causes, Treatments, and More

  https://www.healthline.com/health/headache/types-of-headaches

  There are many different types of headaches, including tension headaches, migraine headaches, ice pick headaches, and others. The cause, duration, and intensity can vary by type. […] Primary headaches occur when the pain in your head is the condition. In other words, your headache isn’t triggered by something your body is dealing with, like illness or allergies. […] Doctors aren’t sure what causes cluster headaches. […] Migraine might run in your family, or the condition can be associated with other nervous system conditions. According to the National Institute for Neurological Disorders and Stroke (NINDS), people assigned female at birth are three times more likely to develop migraine than people assigned male at birth. People with post-traumatic stress disorder (PTSD) also have an increased risk of migraine.

• #95 Headache

  https://www.mayoclinic.org/symptoms/headache/basics/causes/sym-20050800

  Your headache symptoms can help your doctor determine its cause and the appropriate treatment. Most headaches aren’t the result of a serious illness, but some may result from a life-threatening condition requiring emergency care. […] A primary headache is caused by overactivity of or problems with pain-sensitive structures in your head. A primary headache isn’t a symptom of an underlying disease. […] Chemical activity in your brain, the nerves or blood vessels surrounding your skull, or the muscles of your head and neck (or some combination of these factors) can play a role in primary headaches. Some people may also carry genes that make them more likely to develop such headaches. […] A secondary headache is a symptom of a disease that can activate the pain-sensitive nerves of the head. Any number of conditions varying greatly in severity may cause secondary headaches.

• #96 Tension headache – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/tension-headache/symptoms-causes/syc-20353977

  A tension-type headache is the most common type of headache, yet its causes aren’t well understood. […] The cause of tension-type headaches is not known. In the past, experts thought tension-type headaches were caused by muscle contractions in the face, neck and scalp. They thought the muscle contractions were a result of emotions, tension or stress. But research suggests that muscle contraction isn’t the cause. […] The most common theory is that people who have tension-type headaches have increased sensitivity to pain. Muscle tenderness, a common symptom of tension-type headaches, may result from this sensitized pain system. […] Stress is the most commonly reported trigger for tension-type headaches. […] Some research has found that women are more likely to have frequent episodic tension-type headaches and chronic tension-type headaches. Age also might play a factor. One study found that episodic tension-type headaches were more likely to affect people in their 40s.

• #97 Headache Information, Causes, and Symptoms

  https://www.healthline.com/health/headache

  Often, stress and disruptions in your sleep patterns cause these headaches. […] Secondary headaches manifest as a symptom of another health disorder. Different types of illnesses and disorders can cause a headache, including: infection, medication overuse, high blood pressure, mental health conditions, head injury or trauma, stroke, tumor, nerve disorders, sinus congestion. […] The long-term and excessive use of medication to treat a headache can cause medication-overuse headache (MOH). This condition is considered a secondary headache disorder. […] A 2022 review indicated MOH as a factor in people who experience disability from chronic migraine, since the medication they take to treat their migraine headaches leads to more headaches. […] The cause of migraine headaches may be a combination of factors, but researchers believe it may also be due to changes in the activity of the brain’s nerve pathways and chemicals.

• #98 Causes of headaches – Harvard Health

  https://www.health.harvard.edu/staying-healthy/causes-of-headaches

  It’s hard to think about the causes of headaches when you’re struggling with pain. […] The most common types of headaches are tension and migraine headaches. […] But what makes the muscles tense, or causes some nerve endings in the brain to become so sensitive? […] Those causes of headaches can vary from person to person. […] Tension headaches are often set off by: stress, lack of sleep, fatigue, hunger, caffeine withdrawal, abrupt cessation of medications that contain caffeine, such as some pain-relieving medications like ibuprofen (Advil) or acetaminophen (Tylenol), weather changes, food and drinks, such as chocolate; processed foods that contain monosodium glutamate (MSG); or alcohol. […] Many of those triggers for tension headachesespecially stress, hunger, fatigue, and lack of sleepcan also set off a migraine headache.

• #99 10 Surprising Causes of Constant Headaches | SELF

  https://www.self.com/story/constant-headaches-health-meaning

  „More severe anemia can cause headache,” Dr. Hutchinson says. […] Headache is a common side effect of many chronic health conditions like fibromyalgia, lupus, and diabetes. […] Thanks to the drop in estrogen right before menstruation, many people experience PMS-related headaches. […] „Any time of hormonal change is a vulnerable time for headaches,” Dr. Hutchinson says. […] „Most sinus headaches are just migraines with sinus symptoms,” she says. […] Disrupting your body’s schedule can trigger headaches, Dr. Hutchinson says. […] Caffeine causes vasoconstriction in your blood vessels, meaning they get a little narrower. […] Overdoing it on painkillers can actually make the pain worseand the caffeine in some headache medications can cause withdrawal headaches, compounding the effects. […] In rare cases, constant headaches could be a sign of a brain tumor. […] But if headaches are a new thing for you, are the most severe you’ve ever experienced, or are changing or worsening over time, these are signs your doctor may order a brain scan.

• #100 Headache Information, Causes, and Symptoms

  https://www.healthline.com/health/headache

  Often, stress and disruptions in your sleep patterns cause these headaches. […] Secondary headaches manifest as a symptom of another health disorder. Different types of illnesses and disorders can cause a headache, including: infection, medication overuse, high blood pressure, mental health conditions, head injury or trauma, stroke, tumor, nerve disorders, sinus congestion. […] The long-term and excessive use of medication to treat a headache can cause medication-overuse headache (MOH). This condition is considered a secondary headache disorder. […] A 2022 review indicated MOH as a factor in people who experience disability from chronic migraine, since the medication they take to treat their migraine headaches leads to more headaches. […] The cause of migraine headaches may be a combination of factors, but researchers believe it may also be due to changes in the activity of the brain’s nerve pathways and chemicals.

• #101 Headache Pain: When to Worry, What to Do – Harvard Health Publishing – Harvard Health

  https://www.health.harvard.edu/pain/headache-when-to-worry-what-to-do

  Nearly everyone has had headache pain, and most of us have had it many times. […] Doctors don’t fully understand what causes most headaches. […] The blood vessels in the head and neck can signal pain, as can the tissues that surround the brain and some major nerves that originate in the brain. […] There are more than 300 types of headaches, but only about 10% of headaches have a known cause. […] Neurologists believe that migraines are caused by changes in the brain’s blood flow and nerve cell activity. […] Genetics play a role since 70% of migraine victims have at least one close relative with the problem. […] Medication headaches. Many drugs number headaches among their side effects. […] If you have frequent headaches and use medication, OTC or prescription, or both, for more than 10 to 15 days a month, you may have medication overuse headaches. […] Sinusitis is not a common cause of chronic or recurrent headaches. […] Except in cases of very high blood pressure, hypertension does not cause headaches. […] Sudden, strenuous exercise can bring on a headache.

• #102 10 Surprising Causes of Constant Headaches | SELF

  https://www.self.com/story/constant-headaches-health-meaning

  „More severe anemia can cause headache,” Dr. Hutchinson says. […] Headache is a common side effect of many chronic health conditions like fibromyalgia, lupus, and diabetes. […] Thanks to the drop in estrogen right before menstruation, many people experience PMS-related headaches. […] „Any time of hormonal change is a vulnerable time for headaches,” Dr. Hutchinson says. […] „Most sinus headaches are just migraines with sinus symptoms,” she says. […] Disrupting your body’s schedule can trigger headaches, Dr. Hutchinson says. […] Caffeine causes vasoconstriction in your blood vessels, meaning they get a little narrower. […] Overdoing it on painkillers can actually make the pain worseand the caffeine in some headache medications can cause withdrawal headaches, compounding the effects. […] In rare cases, constant headaches could be a sign of a brain tumor. […] But if headaches are a new thing for you, are the most severe you’ve ever experienced, or are changing or worsening over time, these are signs your doctor may order a brain scan.

• #103 Allergy Headaches | Causes, Symptoms & Treatment | ACAAI Public Website

  https://acaai.org/allergies/symptoms/headaches/

  Sinus headaches and migraines — are linked to allergies. […] A sinus headache is caused by swelling in the sinuses that blocks the openings, preventing drainage and causing pressure to build up. Common seasonal and year-round allergens like pollen, mold and pet dander can cause your body’s immune system to react with a sinus headache, even if you have no other allergy symptoms. […] Migraine headaches can be caused by many factors, including genetics. Environmental allergies and food intolerances have been linked to migraines. […] If you’re suffering from sinus headaches or migraines, your board-certified allergist can help you determine whether they are caused by allergies. […] The best way to manage your allergy headaches is to see an allergist. […] Your allergist can help you develop a plan to manage your allergy symptoms, including headaches.

• #104 The Complete Headache Chart | National Headache Foundation

  https://headaches.org/resources/the-complete-headache-chart/

  Post-Traumatic Headaches: Precipitating Factors: Pain can occur after relatively minor traumas. […] Sinus Headache: Precipitating Factors: Infection, nasal polyps, anatomical deformities, such as a deviated septum, that block the sinus ducts. […] Temporo-Mandibular Joint Dysfunction (TMD) Headache: Precipitating Factors: Pathology can be in the joint or in the muscles of chewing. […] Tension-Type Headache: Precipitating Factors: Stress, depression. […] Trigeminal Neuralgia (Tic Douloureux): Precipitating Factors: Often triggered by touching the face. Often caused by abnormal artery loop compressing the trigeminal nerve. […] Thunderclap Headache: Precipitating Factors: Thunderclap Headache may be due to a benign syndrome or a potentially life-threatening condition. […] Tumor Headache: Precipitating Factors: Cause of tumor is usually unknown.

• #105 The Complete Headache Chart | National Headache Foundation

  https://headaches.org/resources/the-complete-headache-chart/

  Post-Traumatic Headaches: Precipitating Factors: Pain can occur after relatively minor traumas. […] Sinus Headache: Precipitating Factors: Infection, nasal polyps, anatomical deformities, such as a deviated septum, that block the sinus ducts. […] Temporo-Mandibular Joint Dysfunction (TMD) Headache: Precipitating Factors: Pathology can be in the joint or in the muscles of chewing. […] Tension-Type Headache: Precipitating Factors: Stress, depression. […] Trigeminal Neuralgia (Tic Douloureux): Precipitating Factors: Often triggered by touching the face. Often caused by abnormal artery loop compressing the trigeminal nerve. […] Thunderclap Headache: Precipitating Factors: Thunderclap Headache may be due to a benign syndrome or a potentially life-threatening condition. […] Tumor Headache: Precipitating Factors: Cause of tumor is usually unknown.

• #106 The Complete Headache Chart | National Headache Foundation

  https://headaches.org/resources/the-complete-headache-chart/

  Depression and Headache: Precipitating Factors: Causes can originate from a wide variety of complaints that can be categorized as physical, emotional, and psychic. […] Eyestrain Headache: Precipitating Factors: Uncorrected or miscorrected vision, astigmatism, or difficulty with convergence. […] Exertional Headache: Precipitating Factors: Triggered by strenuous physical exertion (running, jumping, orgasm), or passive exertion (coughing, sneezing, or straining for a bowel movement). […] Fasting Headache: Precipitating Factors: Caused by fasting > 16 hours. […] Fever Headache: Precipitating Factors: Caused by infection. […] Giant Cell Arteritis: Precipitating Factors: Vascular disease characterized by inflammation of the blood vessels. […] Hangover Headache: Precipitating Factors: Alcohol, which causes dilation and irritation of the blood vessels of the brain and surrounding tissue.

• #107 Headache Pain: When to Worry, What to Do – Harvard Health Publishing – Harvard Health

  https://www.health.harvard.edu/pain/headache-when-to-worry-what-to-do

  Nearly everyone has had headache pain, and most of us have had it many times. […] Doctors don’t fully understand what causes most headaches. […] The blood vessels in the head and neck can signal pain, as can the tissues that surround the brain and some major nerves that originate in the brain. […] There are more than 300 types of headaches, but only about 10% of headaches have a known cause. […] Neurologists believe that migraines are caused by changes in the brain’s blood flow and nerve cell activity. […] Genetics play a role since 70% of migraine victims have at least one close relative with the problem. […] Medication headaches. Many drugs number headaches among their side effects. […] If you have frequent headaches and use medication, OTC or prescription, or both, for more than 10 to 15 days a month, you may have medication overuse headaches. […] Sinusitis is not a common cause of chronic or recurrent headaches. […] Except in cases of very high blood pressure, hypertension does not cause headaches. […] Sudden, strenuous exercise can bring on a headache.

• #108 Understanding Headache Causes, Treatment & Prevention | TYLENOL®

  https://www.tylenol.com/adult-relief/headaches/causes-treatment-prevention

  On the other hand, overdoing things can lead to dehydration and muscle tension, which can bring on the pain. Pushing too hard can also result in an exertional headache from the swelling of blood vessels in your head, neck, and scalp. […] Medications can sometimes be the cause of headaches by changing how your body handles pain signals. […] Loud noises and bright lights can cause sensory overload, leading to increased discomfort.

• #109 Headache: Types, Causes, Symptoms and Treatments | Ada

  https://ada.com/conditions/headache/

  Exertion headaches or activity-related headaches are typically triggered by lengthy periods of physical exercise and are most common in younger people under 50. […] Headaches are one of the most common symptoms of a brain tumor. […] Chronic progressive headaches also known as traction or inflammatory headaches are a rare headache type, which can in some cases be a sign of more serious conditions such as brain tumors, strokes and head trauma. […] A post-traumatic, or post-concussion, headache is described as a headache that develops within seven days of head trauma or regaining consciousness following a head trauma. […] It is important to seek medical attention for any head trauma.

• #110 The Complete Headache Chart | National Headache Foundation

  https://headaches.org/resources/the-complete-headache-chart/

  Depression and Headache: Precipitating Factors: Causes can originate from a wide variety of complaints that can be categorized as physical, emotional, and psychic. […] Eyestrain Headache: Precipitating Factors: Uncorrected or miscorrected vision, astigmatism, or difficulty with convergence. […] Exertional Headache: Precipitating Factors: Triggered by strenuous physical exertion (running, jumping, orgasm), or passive exertion (coughing, sneezing, or straining for a bowel movement). […] Fasting Headache: Precipitating Factors: Caused by fasting > 16 hours. […] Fever Headache: Precipitating Factors: Caused by infection. […] Giant Cell Arteritis: Precipitating Factors: Vascular disease characterized by inflammation of the blood vessels. […] Hangover Headache: Precipitating Factors: Alcohol, which causes dilation and irritation of the blood vessels of the brain and surrounding tissue.

• #111 Headache: Types, Symptoms, Causes, Treatment, & More

  https://www.health.com/headache-causes-7094931

  Whether you have many headaches or not, you may wonder about the types of headaches and what they mean. There are four main types of headachesmigraine, tension, cluster, and secondaryand more than 15% of people worldwide experience a headache on any given day. […] The exact cause of most headaches is unknown beyond secondary headaches. Scientists still believe that the neurological cause may involve the facial nerve, the neurotransmitter serotonin, and other brain chemicals. […] Experts know that secondary headaches are a symptom of another condition. Researchers arent sure what exactly causes headaches in general, however. […] Headache researchers have been studying different theories about several brain chemicals and biological factors that could help explain why people experience headaches. Each type of headache has its own theories of causes and separate risk factors or triggers.

• #112 Headache: Types, Causes, and Treatment

  https://patient.info/brain-nerves/headache-leaflet

  Headaches are common, and many people treat themselves with simple painkillers, drinking extra water or simply by waiting for the headache to go away. […] Most headaches are not caused by serious or sinister conditions. […] Nine out of 10 headaches aren’t caused by a serious underlying problem. […] Sometimes headaches have underlying causes and treatment of the headache involves treating the cause. […] People often worry that headaches are caused by serious disease or by high blood pressure. Both of these are very uncommon causes of headache; high blood pressure usually causes no symptoms at all. […] Headaches can be due to a substance, or its withdrawal. […] Some headaches can be caused by pain in some other part of the head, such as tooth, ear, jaw or neck. […] The headache of sinusitis is often felt at the front of the head and also in the face or teeth.

• #113 Patient education: Headache causes and diagnosis in adults (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/headache-causes-and-diagnosis-in-adults-beyond-the-basics/print

  The vast majority of headaches are not life-threatening. However, headache can be a symptom of serious conditions affecting the brain, such as infection, inflammation, or bleeding within or around the brain. […] Health care providers typically use a person’s description of their headache, in combination with an examination, to determine the type of headache. […] Most people do not need X-rays or other imaging tests. A computed tomography (CT) scan (or magnetic resonance imaging [MRI]) may be recommended in some circumstances, for example, if symptoms are unusual, if there are any danger signs (see 'Headache danger signs’ above), or if there are any abnormalities seen during the examination.

• #114 Headache: Types, Causes, and Treatment

  https://patient.info/brain-nerves/headache-leaflet

  Acute glaucoma can cause severe headache. […] Most headaches, whilst unpleasant, are harmless and respond to simple measures. […] Working out the underlying cause of any headaches is often the best way to solve them. […] It is very rare for them to be a sign of a serious or sinister underlying condition.

• #115 Headache | National Institute of Neurological Disorders and Stroke

  https://www.ninds.nih.gov/health-information/disorders/headache

  The brain itself doesn’t feel pain. Often, headaches happen when pain-sensitive nerve endings (or neurons) respond to triggers or signals in our bodystress, certain foods or smells, or some medicines can cause these signals. […] Headache conditions affect some people more than others. […] Some people may experience a headache attack after eating certain foods. […] Emotional stress (such as from school activities, moving, or family problems) can lead to a headache attack. […] Regular overuse of headache medications can actually worsen headache attacks or cause new headache symptoms. […] The first step in treating a headache is to identify any health conditions that could be causing the headaches. Treating that health condition can also help with any related symptoms, like headaches. […] NINDS-supported research has helped to understand the long-term effects of COVID-19 infections, known as Long COVID. Headaches are a potential symptom of Long COVID, and researchers are starting to identify nervous and immune system changes that can lead to or complicate the condition.

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