NFL concussions

Junior Seau with the patriots

Junior Seau

SI cover about Junior

Even in his 50s herschel walker is in the MMA

Herschel with the Georgia Bulldogs

One of the NFLs greatest all time running backs says the long term effects of concussions are likely being exaggerated.Everybody blames everything on concussions Herschel Walker told USA TODAY Sports on Tuesday. The NFL has a problem. It has to determine the difference between the effects of concussions and depression. If players lose their money or wife or children because of what theyre doing, theyll act different. But you cant throw everything on concussions.Walker who suffered a concussion while playing at Georgia before he won the 1982 Heisman Trophy works with the U.S military in efforts to treat soldiers who had concussions. And he chronicled his own mental health issues in his 2008 memoir breaking free in which he discussed dissociative identity disorder  known as so called multiple personality disorder.There are 3500 former players suing the league over concussions saying they didnt protect them from long term affects. Some players like Junior Seu have even died  or killed themselves and their familys have given their brains for study.