Concussion counts miss what repetitive head impacts do

During this summer’s World Cup, we all watched players redirect the ball with remarkable precision. Our first reaction to a well-executed header was probably, “What a play.” But as a neurosurgeon who has spent much of my career studying head trauma among athletes, I also view those moments through a more clinical lens.

The concern around head impact is not limited to a dramatic collision that produces symptoms or a diagnosed …

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Concussion counts miss what repetitive head impacts do