And the question is...

From, "Brain Injury in Boxing," by Lundberg GD.

"Boxing dates from antiquity but is now being re-evaluated as a viable part of civilized society. Chronic brain damage caused by repetitive subconcussive blows to the head has been shown to be present in 70-87% of boxers who had had many fights. A broad international medical consensus supports the view that boxing is medically and morally wrong and should be banned in civilized countries."

Another article HERE.