NFL Players' Brains May Show Marker for Cognitive Issues

A marker for later cognitive problems may be starting to show up in the brain tissue of former National Football League players, according to a study published Monday in JAMA Neurology.
Researchers found that cognitive problems and depression are more common among aging NFL players with a history of concussion.
Brain damage and mood problems among some segments of the NFL population is not stunning news anymore.
What has scientists slightly giddy are those markers: poor performance on cognitive tests also showing up on sophisticated brain scans.
It suggests that post-concussion damage could someday be detectable by scanning the brain.

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