At Least 1 in 4 NFL Players Had CTE, Landmark Study Finds

A major new study published in The BMJ reveals that at least 24.5% of former NFL players who died between 2016 and 2021 had chronic traumatic encephalopathy (CTE), a degenerative brain disease linked to repeated head trauma.

Plain English

Researchers examined the brains of 235 former players who donated them after death. Out of those, 215—a staggering 91.4%—showed evidence of CTE. Because the disease can only be definitively diagnosed post-mortem, scientists...