Migraine Headaches

Cause

Migraines run in families, and a genetic link has been identified.³ But it is not entirely clear why some people get migraines and others do not.

Although the cause of migraines is not well understood, it may have something to do with the blood vessels in the brain.

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Author:	Monica Rhodes	Last Updated: July 3, 2007
Medical Review:	Anne C. Poinier, MD - Internal Medicine Colin Chalk, MD, CM, FRCPC - Neurology
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