NPR News: Repeated Head Hits, Not Concussions, May Be Behind A Type Of Chronic Brain Damage

Repeated Head Hits, Not Concussions, May Be Behind A Type Of Chronic Brain Damage
Scientists believe they have solid evidence that it's repeated, direct hits to the head that cause the degenerative brain disease seen in some athletes, even if there are no signs of concussion.

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January 18, 2018 at 10:01PM