Oct 17, 2013 5:05 PM by NBC News

Study finds abnormalities in former football players' brains

A new study reveals unusual brain activity in retired NFL players.

It's well known these players have a higher risk of Alzheimer's and Parkinson's disease, but the new findings suggest many have brain abnormalities that don't show up on standard tests.

Brain scans of NFL alumni showed extensive abnormalities in the frontal lobe, which affects a person's ability to plan and organize their lives.

These brain abnormalities correlated strongly with the number of head impacts each player suffered during his career.



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