HEADACHE

Headache

A headache or cephalgia is pain anywhere in the region of the head or neck. It can be a symptom of a number of different conditions of the head and neck. The brain tissue itself is not sensitive to pain because it lacks pain receptors. Rather, the pain is caused by disturbance of the pain-sensitive structures around the brain. Nine areas of the head and neck have these pain-sensitive structures, which are the cranium, muscles, nerves, arteries and veins, subcutaneous tissues, eyes, ears, sinuses and mucous membranes.

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headache

Noun

  1. A pain or ache in the head.
  2. (figurative) A nuisance or unpleasant problem.
    The clumsy filing system has been a huge headache.


The above text is a snippet from Wiktionary: headache
and as such is available under the Creative Commons Attribution/Share-Alike License.

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