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The Boston Globe

Metro

Youth football player had taken brain injury precautions

High school football player Nathan Stiles — who died in 2010 after bleeding occurred in his brain during a football game — was found to have early signs of the brain injury known as chronic traumatic encephalopathy, or CTE, when his brain was autopsied as part of the Boston University study.

The 17-year-old didn’t die from encephalopathy, but from the brain bleed, which was probably caused by an earlier concussion that hadn’t had time to fully heal before Stiles was tackled in subsequent games.

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