What Exactly Happens After a Concussion?

NFL Head, Neck, and Spine Committee Co-Chair Dr. Richard Ellenbogen talks about the lack of a definitive tool, like a blood test, to diagnose brain injury, and what techniques we do have to keep athletes safe.

Posted on BrainLine October 23, 2012.

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