Associated Press
BOSTON -- Pro Football Hall of Famer Mike Haynes and current Chicago Bears linebacker Hunter Hillenmeyer are among more than a dozen NFL players who have pledged to donate their brain and spinal cord tissue for concussion research.
Retired players Zach Thomas, Kyle Turley and Conrad Dobler also have said they'll help the Center for the Study of Traumatic Encephalopathy at Boston University School of Medicine.
The wife of Hall of Famer John Mackey also pledged to donate his brain after his death. Mackey has dementia.
The NFL and its players association have said they will support the center's research and encourage players to participate.
Copyright 2010 by The Associated Press

Doesn't he need it? Oh wait, he's a football player. Guess not.
ahhh.,....hey loosers can i donated my brain?????? :)
sense i am one milloin times smarter then oyu loosers it only mkaes sense that teh world can have a chance to study a PERFETC bran like mine!!! im ena common i just hapen to be RIHGT 100% ans ionle give FACTS!
but ouy guys now me old crap-ton...just trying to be posative
p.s. its goingto be martz at oc.. you heard it hear first loosers!