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  2. Headache - Wikipedia

    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. [1] [2] There is an increased risk of depression in those with severe headaches.

  3. The International Classification of Headache Disorders (ICHD) is a detailed hierarchical classification of all headache-related disorders published by the International Headache Society. [1]

  4. Seppuku - Wikipedia

    en.wikipedia.org/wiki/Seppuku

    Seppuku (切腹, lit. ' cutting [the] belly '), also called harakiri (腹切り, lit. ' abdomen/belly cutting ', a native Japanese kun reading), is a form of Japanese ritualistic suicide by disembowelment.

  5. Migraine - Wikipedia

    en.wikipedia.org/wiki/Migraine

    Migraine (UK: / ˈ m iː ɡ r eɪ n /, US: / ˈ m aɪ-/) [1] [2] is a genetically-influenced complex neurological disorder characterized by episodes of moderate-to-severe headache, most often unilateral and generally associated with nausea and light and sound sensitivity.

  6. Cervicogenic headache - Wikipedia

    en.wikipedia.org/wiki/Cervicogenic_headache

    Cervicogenic headache is a type of headache characterized by chronic hemicranial pain referred to the head from either the cervical spine or soft tissues within the neck. [1] [2] The main symptoms of cervicogenic headaches include pain originating in the neck that can travel to the head or face, headaches that get worse with neck movement, and limited ability to move the neck.

  7. Bipolar disorder - Wikipedia

    en.wikipedia.org/wiki/Bipolar_disorder

    Bipolar disorder, previously known as manic depression, is a mental disorder characterized by periods of depression and periods of abnormally elevated mood that each last from days to weeks, and in some cases months.

  8. Myalgia - Wikipedia

    en.wikipedia.org/wiki/Myalgia

    Myalgia or muscle pain is a painful sensation evolving from muscle tissue.It is a symptom of many diseases.The most common cause of acute myalgia is the overuse of a muscle or group of muscles; another likely cause is viral infection, especially when there has been no injury.

  9. Vascular headache - Wikipedia

    en.wikipedia.org/wiki/Vascular_headache

    A vascular headache is an outdated term to describe certain types of headache which were thought to be related to blood vessel swelling and hyperemia as cause of pain. [citation needed]