Migraine From Wikipedia, the free encyclopedia · Migraine is a primary headache disorder characterized by recurrent headaches that are moderate to severe. · Typically, the headaches affect one half of the head, are pulsating in nature, and last from two to 72 hours. · Associated symptoms may include nausea, vomiting, and sensitivity to light, sound, or smell. · The pain is generally made worse by physical activity. · Up to one-third of people have an aura: typically, a short period of visual disturbance which signals that the headache will soon occur. · Occasionally, an aura can occur with little or no headache following it. · Migraines are believed to be due to a mixture of environmental and genetic factors. · About two-thirds of cases run in families. Changing hormone levels may also play a role, as migraines affect slightly more boys than girls before puberty and two to three times mo
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