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(NECN) - A new study first reported Monday by the Boston Globe confirms the damage that traumatic head injury can do to a brain.
The study also serves as a warning to athletes, including one of whom was pictured: Nathan Stiles, a high school football player who died after a head injury.
Researchers at the Boston University School of Medicine found that of the 85 donated brains studied, 68 had abnormal protein deposits. The brains were that of 50 former football players, including nine college and six high school players.
Dr. Robert Cantu, the man who ordered the study, dropped by Broadside on Wednesday to discuss the findings and encephalopathy, or CTE - which is defined as degenerative brain disease.
"It's not just concussions - it's total head blows, sub-concussive blows count," Dr. Cantu said. "We have individuals in our series who don't have any recognized concussions, so it's concussive blows and sub-concussive blows, but the repetitive head trauma is what is causing chronic and traumatic encephalopathy. I believe this beyond doubt."
Watch the attached video for the complete interview.