Brain News
Concussions caused by series of hits not single blow
Concussions are likely caused by many hits over time and not from a single blow to the head, as commonly believed, a two-year study of high school football players has suggested.
Purdue University researchers studied football players for two seasons at Jefferson High School in Lafayette, Ind., where 21 players completed the study the first season and 24 the second season, including 16 repeating players.
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