A postmortem exam of the brain remains the gold standard for diagnosing chronic traumatic encephalopathy, or CTE, the neurodegenerative brain disease believed to arise from repeated hits to the head. Yet a small but by no means trivial number of former professional football players say they have received a diagnosis of CTE, according to a new study. Even though the results are based on player self-reports rather than on documented clinical diagnoses, the researchers say their findings are alarming for a number of reasons.
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