A group of researchers at Boston University's Center for the Study of Traumatic Encephalopathy found that football players who suffered repeated blows to the head and concussions could suffer from chronic traumatic encephalopathy (CTE), a condition common among boxers also known as punch-drunk syndrome. The study examined the brains of deceased former football players, uncovering symptoms of CTE is the majority of the samples.
According to the Washington Post, "The center also announced it has tested an 18-year-old high school football player who had suffered many concussions and who recently died. The test showed the boy also had CTE." Ann McKee, a neuropathologist at Boston University who was interviewed for the story remarked, "This is something you should never see in an 18-year-old's brain."