Football players and fans, if they had doubts before, have taken yet another hit to their favorite sport, with a retrospective study of hundreds of pro players’ brains finding a damaging disorder in a startling percentage of the donated organs.
Experts reported in the Journal of the American Medical Association that 110 of 111 brains of onetime players in the National Football League, examined by neuropathologists and other experts, showed evidence of chronic traumatic encephalopathy, or CTE. It’s a degenerative disease that experts think is caused by repeated head blows. It has been linked with multiple symptoms, including memory loss, confusion, depression and dementia. The problems can crop up long after the head trauma stops.
Caution needs to be exercised with this research because the athlete-brain donors and their families were extremely self-selecting. They participated in the post-mortem study, some with guarantees of confidentiality about identities, because they had experienced or started to show likely CTE-related debilitation before their deaths.