CTE Prevalence in Ex-NFL Players Could Be Higher

A BMJ analysis of 235 brains from deceased NFL players who played since 1949 found 215 with CTE, yielding a minimum prevalence of 24.5% and suggesting the rate could be higher depending on sample and method; other studies report about 25% in larger donor groups and show much higher rates when considering all donated brains. Live prevalence cannot be diagnosed, since CTE is confirmed only post-mortem. The findings consistently link repetitive head trauma with long-term neurodegenerative risk and raise safety concerns in youth and professional football. Experts and players advocate faster progress in prevention, safer practices, limited contact in practice, and improved protective gear. The broader context underscores ongoing debates about true rates and how best to mitigate risk for players and families.