Former Hawai'i quarterback Colt Brennan, who died in May 2021, was posthumously diagnosed with Stage 1 chronic traumatic encephalopathy, according to Brandon Sneed of Sports Illustrated.
CTE is a degenerative brain disease caused by continuous blows to the head and is a major concern in the football community. Sneed reported Brennan's family donated his brain to Boston University's CTE Center since the disease can only be diagnosed postmortem.
While multiple brain injuries, including one from a 2010 car crash, and lost tissue due to the nature of his death after a drug overdose made it more difficult to examine his brain, Dr.