Study finds at least 25% of deceased NFL players had degenerative brain disease

A recent study examining the deaths of former National Football League players between 2016 and 2021 found that at least one in four of the decedents had been diagnosed with a degenerative brain disease, such as chronic traumatic encephalopathy (CTE). The research, which reviewed medical records and post‑mortem examinations, identified the condition in 25 percent of the 1,200 ex‑players whose causes of death were investigated, highlighting the ongoing health risks associated with repeated head trauma sustained during professional football careers.

The authors caution that the reported figure likely underrepresents the true prevalence, noting that many cases may go undetected due to limited autopsy rates and diagnostic challenges. The study adds to a growing body of evidence linking contact‑sport exposure to long‑term neurological impairment and underscores the need for continued monitoring, improved safety protocols, and expanded support for former athletes facing cognitive decline.