A quarter of former NFL players who died between 2016-2021 had CTE, study finds

At least a quarter of former NFL players who died between 2016 and 2021 had CTE, a study estimates. Researchers calculated a conservative CTE prevalence of 24.5 per cent among 878 former NFL players who died during the period. Chronic traumatic encephalopathy (CTE) can currently only be definitively diagnosed after death by examining brain tissue. [...]