A new study says at least one in four ex-NFL players who died between 2016 and 2021 had a degenerative brain disease but the true figure could be much higher. As many as 97.7% of NFL players who died between 2016 and 2021 could have had brain disease related to repeated blows to the head, a new study says. Researchers looked at 878 former players who died during that period, with 235 having donated their b... [967 chars]
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