1 in 4 former NFL players who died from 2016 to 2021 had CTE, study estimates

By Nadia Kounang, CNN (CNN) — At least 1 in 4 former National Football League players who died between 2016 and 2021 had chronic traumatic encephalopathy, according to a new study. The study, released Tuesday in the journal BMJ, is “one of the most informative estimates to date of CTE burden among former NFL players,”