• Former players from more than 100 college football teams have been diagnosed with chronic traumatic encephalopathy, the degenerative brain disease widely known as CTE. Fifteen schools have identified at least three separate cases of ex-players who suffered the degenerative condition, prompting warnings it is not only a danger to professional athletes.

  • Being homeless is linked to much higher rates of traumatic head injury. But professionals are still misdiagnosing and mistreating people.

  • More specialists are encouraging patients to gradually resume normal activities rather than rest for an extended period.

  • A single concussion experienced by a child or teenager may have lasting repercussions on mental health and intellectual and physical functioning throughout adulthood, and multiple head injuries increase the risks of later problems, according to one of the largest, most elaborate studies to date of the impacts of head trauma on the young.

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