Headache

Pain in head or neck

Headache
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Headache is a common symptom involving pain or discomfort in the face, head, or neck region. The experience can vary greatly, from a dull, throbbing sensation to a sharp, intense pain. The type, intensity, and location of a headache can be indicative of different medical conditions. Frequent or severe headaches can significantly affect a person's quality of life, interfering with relationships, employment, and increasing the risk of depression.

Classification and Types

The International Headache Society has developed a widely recognized classification system for headaches, categorizing them based on their causes and symptoms. Key types of headaches include:

• Migraine: These are severe headaches often accompanied by nausea, vomiting, and sensitivity to light and sound. They can be preceded by an "aura," a group of symptoms including vision disturbances.
• Tension-type headache: The most common type of headache, tension-type headaches are often described as a constant pressure or tightness around the head.
• Cluster headache: These are intensely painful headaches that occur in cycles or "clusters," often at the same time of day for several weeks.

Causes

Headaches can result from a wide array of conditions and factors, such as:

• Physiological factors: Dehydration, fatigue, and sleep deprivation can all contribute to the development of headaches.
• Stress: High levels of stress can trigger both tension-type headaches and migraines.
• Medication effects: Some drugs can cause headaches as a side effect or withdrawal symptom.
• Recreational drugs: Certain substances, including alcohol and caffeine, can trigger headaches.
• Infections: Viral infections can lead to headaches, often accompanied by other symptoms like fever and fatigue.
• Injury or trauma: Headaches are a common symptom following a head injury.
• Dental or sinus issues: Conditions such as sinusitis can cause headaches due to the pressure and inflammation in the sinus cavities.

Treatment

Treatment for headaches depends on the type, severity, and underlying cause of the headache. Over-the-counter pain relievers are commonly used for mild to moderate headaches, while prescription medication may be necessary for more severe headaches or migraines. Lifestyle modifications, such as stress management and regular sleep, may also be beneficial. In some cases, the treatment of underlying conditions (e.g., sinusitis, dehydration) can alleviate headache symptoms.

Prevalence

Headaches are among the most common health complaints globally. It is estimated that about half of all adults experience a headache in a given year. Tension-type headaches are the most prevalent, affecting about 1.6 billion people (21.8% of the global population), followed by migraines, which affect about 848 million (11.7%).

See Also

• Migraine
• Tension headache
• Cluster headache
• Sinusitis

External links

• World Health Organization - Headache disorders

Further Reading

• Silberstein, S.D. (2004). "Migraines." Lancet. 363(9406):381-91. doi: 10.1016/S0140-6736(04)15440-8.
• Jensen, R.; Stovner, L.J. (2008). "Epidemiology and comorbidity of headache." Lancet Neurol. 7(4):354-61. doi: 10.1016/S1474-4422(08)70062-0.
• Stovner L, Hagen K, Jensen R, et al. (2007). "The global burden of headache: a documentation of headache prevalence and disability worldwide." Cephalalgia. 27(3):193-210. doi: 10.1111/j.1468-2982.2007.01288.x.
• Dodick, D.W. (2018). "A phase-by-phase review of migraine pathophysiology." Headache. 58 Suppl 1:4-16. doi: 10.1111/head.13284.

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