Giving Athletes A Heads-Up On Concussions

Football players take a lot of hits, but when does hard-headed play go too far? New research suggests that head trauma can do lasting damage. Two brain researchers talk about what happens in the brain when a player gets hit, and how athletes can better protect themselves.
Original article from http://www.npr.org/templates/story/story.php?storyId=120174333&ft=2&f=510221