Malcolm Gladwell Article in The New Yorker

On concussions and football.

“We were in the cold tub, which is, like, forty-five degrees, and he starts passing out. In the cold tub. I don’t know anyone who has ever passed out in the cold tub. That’s supposed to wake you up. And I’m, like, slapping his face. ‘Richie! Wake up!’ He said, ‘What, what? I’m cool.’ I said, ‘You’ve got a concussion. You have to go to the hospital.’ He said, ‘You know, man, I’m fine.’ ” He wasn’t fine, though. That moment in the cold tub represented a betrayal of trust. He had taken the hit on behalf of his team. He was then left to pass out in the cold tub, and to deal—ten and twenty years down the road—with the consequences. No amount of money or assurances about risk freely assumed can change the fact that, in this moment, an essential bond had been broken. What football must confront, in the end, is not just the problem of injuries or scientific findings. It is the fact that there is something profoundly awry in the relationship between the players and the game.

Dogfighting is also woven in.

ETA:  The NFL's study and whether its methodology is flawed.