What We Know and Don't Know About Repetitive Hits to the Head

More and more research is proving that repetitive shaking of the brain or hits to the head whether from combat or contact sports can often result in long-term neurological decline.

See all videos with Dr. Richard Ellenbogen.

Posted on BrainLine October 23, 2012.

Produced by Vicky Youcha, Ashley Gilleland, Justin Rhodes, and Erica Queen, BrainLine.