NFL Concussion Problem

The medical profession has known for decades that multiple or chronic concussions lead to problems later in life.
# 1 - Mohammed Ali for example. That goes back 40 years.

That is why professional boxing lost much of is popularity over the years and you find few mainstream sports entertainment channels showing boxing anymore.

Had they known the effects of playing through concussions, they still would have played through them. I played through a concussions my freshman year of high school. players have come out and said that they would lie about symptoms to stay in the game. Despite what we know about not letting the brain fully heal. And these are players playing in the "soft" era of pro football