Brains of former football players showed how common traumatic brain injuries might be
Signs of degenerative brain disease are also found in former high school and college athletes
HARD KNOCKS By studying the brains of former football players, researchers are finding clues about how a neurodegenerative disease called chronic traumatic encephalopathy, or CTE, progresses, with the hopes of one day preventing it.
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There have been hints for years that playing football might come at a cost.