Study estimates 75% of deceased ex-NFL players had brain disease CTE

A study in JAMA Network Open estimates that about 75% of former NFL players who died between 2008 and 2023 had chronic traumatic encephalopathy, a degenerative brain disease. Researchers analysed records of 2,362 deceased players. Of nearly 400 whose brains were donated, 93.5% showed CTE, a rate far higher than in general population samples.