Headache corner, A headache is pain or discomfort in the head,
scalp, or neck. Serious causes of headaches are rare. Most people with
headaches can feel much better by making lifestyle changes, learning ways to
relax, and sometimes by taking medicines.
Headache is defined as a pain arising from the head or upper neck of the
body. The pain originates from the tissues and structures that surround the
skull or the brain because the brain itself has no nerves that give rise to the
sensation of pain (pain fibers).
The thin layer of tissue (periosteum) that surrounds bones, muscles that
encase the skull, sinuses, eyes, and ears, as well as thin tissues that cover
the surface of the brain and spinal cord (meninges), arteries, veins, and
nerves, all can become inflamed or irritated and cause headache.
The pain may be a dull ache, sharp, throbbing, constant, intermittent, mild, or
intense.
Headaches are usually caused by either muscle tension, vascular problems,
or both. Migraines are vascular in origin, and may be preceded by visual
disturbances, loss of peripheral vision, and fatigue. Most headaches can be relieved
or ameliorated by over-the-counter pain medications.
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