High school football players experienced brain changes long before they had symptoms of concussion. The findings suggest that concussions come from cumulative damage, researchers say.
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Read the complete post at http://www.npr.org/blogs/health/2012/02/03/146352079/many-hits-rather-than-a-big-one-pose-greatest-concussion-risk?ft=1&f=103537970
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Feb 03 2012, 11:57 AM
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Shots - Health Blog