A new study from JAMA Network Open by researchers at Boston University, Mass General Brigham, and the Concussion & CTE Foundation has found that an estimated 75 percent of former NFL players who died between 2008 and 2023 had CTE.

A newly published study estimates that roughly 75 percent of former NFL players who died between 2008 and 2023 had chronic traumatic encephalopathy (CTE). The research provides critical new data on the prevalence of the degenerative brain disease among former professional football players during that fifteen-year timeframe.
The findings were released by JAMA Network Open following collaborative research conducted by Boston University, Mass General Brigham, and the Concussion & CTE Foundation.
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