Head injuries are no joke and can cause all kinds of long term damage we still aren't sure of.

I have met and talked with several former NFL players (mostly from the late 70's) and they all said that when the career is over you are used up. Arthritic hands, shoulder injuries, leg injuries, multiple concussions etc. all causing constant pain daily. They also complained of regular or constant headaches as well as regular migraines which is probably due to the concussions (duh) and they are now finding (finally) that multiple concussions may lead to severe depression issues.

Bummer to see him take the 32 cent solution but it was his decision and only he knows why he did it.