this is exactly my point.
by your own admission, you understood the risks when you took the job because they were quick to let you know the possibilities. you knew you might get hurt, but were ok with it. with cigarettes, you knew the health risks, yet chose to keep on smoking. the nfl has never done this -- and, in fact has done the opposite by denying the connection between prolonged contact to the head and depression, suicide, etc.
again, i agree with you regarding the physical injuries. they're to be expected. i just don't think that the players signed on for the long term, debilitating mental injuries.