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PBS News Hour

What parents wish they had known earlier about head injuries

Season 2023 Episode 339 | 7m 36s

For years, researchers have studied the effects repeated blows to the head have on athletes in pro football, hockey, soccer and other sports. Now, researchers at Boston University are conducting the first major study of CTE, the degenerative brain disease linked to repeated hits to the head, in athletes who died before their 30th birthday. John Yang reports.

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