Study: Repeated Head Impacts Damage Brain Even Without Concussions

Athletes who experience years of repeated head impacts face cumulative brain cell loss and neurodegeneration that may manifest as mood, behavior, memory and cognitive problems.

For generations, the specter of brain disease in athletes was thought to arrive only after abnormal proteins had already taken hold — a visible marker of invisible suffering. New research published in Nature suggests the damage begins far earlier, written not in dramatic collisions but in the quiet accumulation of thousands of ordinary impacts. The brain, it seems, does not wait for catastrophe to begin its slow unraveling; it begins losing the very neurons that connect thought to action long before any clinical threshold is crossed.

Study: Repeated Head Impacts Damage Brain Even Without Concussions

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