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Migraine



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A migraine is a severe vascular headache that is usually worse on the sides of the head but can also occur on only one side of the head.

Blood vessels in the head supply the scalp and brain with blood.

Migraine headaches occur when these blood vessels dilate and stretch, causing the vessels to widen and then narrow rapidly.

Pain fibers in the blood vessel walls become irritated and the nerves surrounding the blood vessels release chemicals, sending ... more



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