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Study: Concussions Leave Lasting Changes in Brain

A new study of Canadian hockey players shows concussions — even one concussion — can cause significant changes to brain matter.

Researchers from the Hockey Concussion Education Project, an independent collaboration of specialists from Canada and the United States, examined the effects of concussions on 45 male and female Canadian university hockey players through magnetic resonance imaging (MRI) analyses done on players before, during and after a single hockey season.

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