Signs of Degenerative Brain Disease CTE Found in Five Living Ex-NFL Players

According to a study published on Tuesday i the American Journal of Geriatric Psychiatry, researchers have found evidence of chronic traumatic encephalopathy (CTE) in five living former NFL players.

CTE is the degenerative brain disease that has been found in the brains of athletes and soldiers who have been the targets of repeated head hits and concussions.

Until now, scientists could only find the disease in patients who had already died, but in this study researchers used positron emission tomography (PET) scans to find CTE's signature tau protein deposits in living ex-football players who showed some symptoms of the disease, including mood swings, depression, and cognitive problems.