At least 1 in 4 former NFL players who died during 2016-21 had evidence of brain disease at death linked to repeated head impacts
New estimates strengthen evidence of confirmed CTE burden in former NFL players, while highlighting uncertainties At minimum, nearly a quarter of all former National Football League (NFL) players who died from 2016 to 2021 had confirmed chronic traumatic encephalopathy (CTE) – a neurodegenerative disease linked to repeated head impacts – ...

