in 2017, a study of the brains of former football players returned some of the most damning evidence to date of the inherent dangers of the game. Of 111 former NFL players' brains examined post-mortem, 110 were found to have the damage associated with chronic traumatic encephalopathy, a brain disease causing serious emotional and behavioral problems—and, often, premature death. That football is physically risky has been known virtually since its advent; what the newest studies suggest is that its dangers are (...) much more extensive than previously imagined, and much harder to avoid than had been hoped.Such findings add urgency to the ethical problems that football raises: How can one justify... (shrink)