War Veterans' Concussions Are Often Overlooked

Man with Hand on Side of His Face

Former Staff Sgt. Kevin Owsley is not quite sure what rattled his brain in 2004: the roadside bomb that exploded about a yard from his Humvee or the rocket-propelled grenade that flung him across a road as he walked to a Porta Potti on base six weeks later.

Read more at: http://www.nytimes.com/2008/08/26/us/26tbi.html