Paris: Good news for chronic migraine sufferers: even the most severe forms of these blindingly painful headaches do not cause damage to the brain. "It is almost always the first question that migraine patients ask," said Christophe Tzourio, a doctor and researcher at the Universite Pierre et Marie Curie in Paris,and the main architect of a study published online this week in the British Medical Journal. "Today we can provide an answer: there`s nothing to worry about," he told said. Migraines are acutely debilitating headaches --sometimes with an "aura", in which patients have the impression of seeing through frosted glass -- that strike around one out of nine adults. The causes remain uncertain, but are known to involve a link with blood vessels in the brain.
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