A newly published study found that one quarter of former NFL players who died over a recent six-year period had chronic traumatic encephalopathy, a brain disease tied to repeated head impacts. The finding landed on Tuesday, and it immediately sent a fresh shock through football’s safety debate.
That is why people are searching what is cte in football players now. The answer is simple, if grim: CTE is a neurodegenerative disease linked to repeated blows to the head, and the study said it affects less than 1 percent of people in the general population. Daniel Daneshvar, one of the researchers, said former NFL players were not only absorbing hits in the NFL. They were exposed at the collegiate level, the high school level and, in many cases, the youth level too. He called the findings a wake-up call.
The numbers give the warning its force. Daneshvar said that on a 53-person NFL team, at least 13 players could develop CTE. The study was conducted by experts at Mass General Brigham, Boston University and the Concussion & CTE Foundation, and it found CTE in one quarter of the brains examined. That is a stark result on its own, but it sits against an even more unsettling earlier benchmark: in 2017, researchers said they found CTE in 110 of the first 111 brains of former NFL players donated for research.
The catch is in the sample. The new findings came only from deceased players whose brains were donated for research, which means the percentage cannot cleanly be read as the rate for every former NFL player. Donation patterns can skew any estimate, and the study’s own setup leaves open the possibility that the true number is higher or lower than the headline figure. What it does show is that the disease is not a rare footnote in football, especially when measured among the players whose families chose to put their brains under the microscope.
The NFL Players’ Association called the study a sobering reminder and a call to action across the entire football ecosystem. The league now requires Guardian caps during contact practices for all players except quarterbacks, kickers and punters unless they wear one of 10 helmets deemed high-performance models, a reminder that the sport’s safety fixes are still evolving while the science keeps pushing the issue forward. On Tuesday, DeMario Douglas said he moved from an older helmet model to a newer one after the older version felt less safe when he hit the ground, and Greg Van Roten said the newest helmets definitely made a difference.
That is where the story lands today: football is still trying to outrun a disease linked to the game itself, and the new study says the cost may already be much larger than the sport has been willing to face. The next question is no longer whether CTE belongs in the conversation. It is how quickly football can turn that warning into treatment, better protection and, eventually, something closer to a cure.
