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Dallas Cowboys defensive end Marshawn Kneeland had early stage CTE at time of death

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Researchers determined Kneeland, who was 24, was in stage one of four of CTE.

CTE is a degenerative brain disease that has been found in athletes in contact sports, combat veterans and others who experience repetitive blows to the head. It has been known to cause violent mood swings, impulsive behavior and depression. It can be diagnosed only after continue reading …

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