Study: Concussions May Lead to Smaller Brain Volume

A new study published Tuesday in the Journal of the American Medical Association suggests college football players with concussion histories may have smaller brain volumes and slower reaction times than players with fewer years of experience.

The study, conducted by the Laureate Institute for Brain Research (LIBR), looked at 25 college football players that already had a history of concussions and compared them to 25 college football players who had not suffered concussions and 25 non-football-playing control participants. Researchers then measured brain function using an MRI machine, while the participants took computerized cognitive tests.

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