Brain study: Symptoms remain 4 months after concussion

According to research published this week in Neurology -- the medical journal of the American Academy of Neurology -- and publicized by Medical Xpress, special brain scans show evidence of brain abnormalities four months after a mild concussion, when symptoms from the concussion were thought to have mostly dissipated.

The study examined 50 people who had suffered mild concussions and 50 healthy people of similar background. A total of 26 people repeated the study four months after the concussion.

-- Bill Bradley, contributing editor

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