CTE on the Brain

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  • CTE in the News
  • What Is CTE?
  • What CTE Does to the Brain
  • CTE Symptoms
  • Diagnosing CTE
  • Concussions and Brain Trauma
  • The State of NFL Players’ Mental Health
  • Suicide and CTE
  • Black Athletes and CTE

What CTE Does to the Brain

This trauma triggers progressive degeneration of the brain tissue, including the build-up of an abnormal protein called tau, says the Boston University Center for the Study of Traumatic Encephalopathy. These changes can occur within months of being hit, years or even decades after playing the sport. 

(Photo: Neil Borden/Getty Images)

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