A 17-year-old boy from with Tourette's has had his tics dramatically reduced by experimental brain surgery.Callum deQuevedo was plagued by severe tics for three years, which included screaming, cursing and hitting himself in the head. The successful surgery involved inserting a device called a neurostimulator under Callum's collarbone, which sends a current to his head and produces electrical impulses that block the abnormal nerve signals that cause tics.
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