The Center for Disease Control estimates there are almost four million sports-related concussions each year. These injuries can cause serious brain damage. But there's another consequence of a concussion injury.
KING5.com
Posted on February 14, 2013 at 4:47 PM
Updated Thursday, Feb 14 at 4:59 PM
The Center for Disease Control estimates there are almost four million sports-related concussions each year. These injuries can cause serious brain damage. But there's another consequence of a concussion injury.
Credit: KING