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flag Young athletes in contact sports suffer brain cell loss and damage from head impacts, even without CTE, a 2025 study finds.

flag A September 17, 2025, study in Nature finds that young athletes in contact sports like football, soccer, and ice hockey suffer significant brain cell loss, inflammation, and blood vessel damage from repeated head impacts—even without developing CTE. flag Analyzing brain tissue from 28 men aged 25 to 51, researchers found a 56% neuron loss in impact-vulnerable brain regions, along with heightened immune activity and structural changes, suggesting early brain injury. flag The findings, led by Jonathan Cherry of Boston University and funded by the NIH, indicate such damage may begin years earlier than previously thought, underscoring the need for improved detection and prevention strategies to protect young athletes from long-term neurological risks.

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