For years, scientists have wondered how migraines can trigger auras — short-lived neurological symptoms that arise before or during migraines. Now, a newly discovered way in which the brain talks to peripheral nerves may be the answer, a mouse study suggests.
More than 1 billion people each year will have a migraine, and about one-quarter of those migraines will be accompanied by an aura. These sensory symptoms can include seeing lights and hearing sounds that aren't there or feeling tingling or numbness.
