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A small study of retired NFL players finds big evidence of head trauma

A small study of retired NFL players finds big evidence of head trauma

A study of the brains of 40 retired National Football League players has found evidence that damage and impairment is widespread in those who have played the game professionally.

The study is small, but nonetheless one of the largest to examine the brains of former football players athletes while they're alive. The new research, to be presented Tuesday at the annual meeting of the American Academy of Neurology, looked at the retired players, most off the field for less than five years, with an average age of 36.

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Even among such young retirees,...

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