"I think there could be some trauma still stored in his body from what he's gone through with the head injuries," Waller said ...

Bleeding occurs when trauma damages a blood vessel. When that trauma involves your head—whether the scalp, skull, or brain—it’s considered a head injury. These head injuries range in severity from a ...

The brain's waste-clearing system significantly declines in function with repeated head impacts, according to a new study of cognitively impaired professional boxers and mixed martial arts fighters.