As I explained elsewhere, that's not a valid conclusion to draw, since the families of all of the players donated their players brain because the family suspect

As I explained elsewhere, that's not a valid conclusion to draw, since the families of all of the players donated their players brain because the family suspected their player had CTE. But it's still a horrifying stat, and the conclusion one should draw is that playing American football means you are at significant risk for developing CTE. Enough that it has changed how I view the sport.