Derrick Jensen

Part of the problem is that we have become so dependent upon this system that is killing and exploiting us, it has become almost impossible for us to imagine living outside of it, and it's very difficult physically for us to live outside of it.

The families of many athletes - incensed at the sports leagues and hoping to make games safer overall - are increasingly making the brains of players who die prematurely and suspiciously available for study. Some athletes are even making the bequest themselves.