The cause of migraine with aura isn't clearly understood. It's believed that the visual aura that may accompany migraine is like an electrical or chemical wave that moves across the part of your brain that processes visual signals (visual cortex). As the wave spreads, it may cause these visual hallucinations.
Many of the same factors that trigger migraine can also trigger migraine with aura, including stress, bright lights, too much or too little sleep, and menstruation.
June 04, 2013
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