If you haven't seen this documentary on the epidemic of the chronic brain disease CTE (Chronic Traumatic Encephalopathy) that's killing off former NFL players, you really should. It's quite shocking.
And now there's new information that, for the first time, CTE can be diagnosed while a player is still living. Two former NFL Hall of Famers, Tony Dorsett and Joe DeLamielleure have both tested positive for CTE.
This interview with Dorsett, whose life is in ruins, is positively chilling.