what is migraine ? wht the effects of migraine ?
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Migraines are vascular headaches but the exact cause is not fully understood. Some researchers believe that migraines occur when there are abnormal changes in the brain. When these changes occur, inflammation causes blood vessels to swell and press on nerves, which can result in pain.
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migrane is a severe headache often accompanied by nausea and sensitivity to light. it usually causes a severe throbbing or pulsing usually to one side of the head.