New Study: 75% of Deceased Ex-NFL Players Had CTE Brain Disease 2026

A new study estimates that 75% of deceased former NFL players had chronic traumatic encephalopathy (CTE), a degenerative brain disease linked to repeated head impacts. The research, published in JAMA Network Open, examined the prevalence of CTE among NFL players who died between 2008 and 2023.

The Boston-based team found that the estimated rate of CTE among these players was substantially higher than in the general population. The analysis included records from 2,362 deceased former NFL players who spent an average of five years in the league.

What the Study Found

Of the nearly 400 players whose brains were donated for examination, 93.5% showed evidence of CTE. Researchers said the findings represented the first attempt to estimate how widespread CTE was among all former NFL players who died during the 2008-2023 period, rather than limiting the analysis to individuals whose brains were donated for research.

Physical changes associated with the condition include brain atrophy, which involves the loss of brain tissue, and accumulations of tau protein, a characteristic also associated with Alzheimer’s disease. The difference compared with the broader population was substantial.

According to the study’s authors, less than 1% of brain samples from community-based brain banks contain evidence of CTE. This stark contrast highlights the elevated risk faced by professional football players.

Why This Matters for Player Safety

The study’s findings underscore the serious long-term health risks associated with playing professional football. CTE has been linked to memory loss, confusion, impaired judgment, impulse control problems, aggression, depression, and progressive dementia.

The NFL has faced increasing scrutiny over player safety in recent years, implementing rule changes and concussion protocols. However, this study suggests that the prevalence of CTE among former players remains alarmingly high.

Researchers noted that the study’s estimates are based on a sample of donated brains, which may not be fully representative of all former players. Nevertheless, the findings add to a growing body of evidence about the dangers of repetitive head trauma in football.

Key Takeaways

• 75% estimated prevalence of CTE among deceased former NFL players from 2008 to 2023.
• 93.5% of donated brains showed evidence of CTE.
• Less than 1% of community brain bank samples contain CTE evidence.
• Study analyzed records of 2,362 former players with an average career of five years.
• Findings highlight the need for continued research and player safety measures.

How CTE Affects the Brain

CTE is characterized by the buildup of tau protein in the brain, which can form tangles and disrupt normal brain function. This buildup can lead to brain atrophy, or shrinkage, and is associated with symptoms that may appear years after the repetitive head impacts occurred.

The disease can only be definitively diagnosed through post-mortem examination of brain tissue. The study’s authors emphasized that the findings are based on donated brains, which may introduce selection bias, as families of players with symptoms may be more likely to donate.

What This Means for the NFL and Beyond

The study’s results have significant implications for the NFL and other contact sports. They reinforce the need for continued efforts to reduce head injuries and improve player safety at all levels of football.

The NFL has already made changes to rules regarding kickoffs and tackling to reduce head impacts, and has implemented concussion protocols. However, critics argue that more needs to be done to protect players. The background to this story is set out in Celebrity: latest articles. A related thread runs through Troy Aikman and Joe Buck: NFL Broadcast Duo Set to Split.

For former players and their families, the findings may prompt increased awareness and advocacy for better healthcare and support. The study also adds urgency to ongoing research into treatments and prevention strategies for CTE. Earlier coverage in Chiefs Sign Justin Tucker Amid Controversy as Butker Struggles shows how the argument developed. A closer look at the same subject appears in Jay-Z Super Bowl Halftime Show 2027: The Billionaire Shill.

Comparison of CTE Prevalence

FAQ

The study’s findings have reignited conversations about the long-term health consequences of playing football. As research continues to evolve, it is crucial for players, families, and organizations to stay informed about the risks and take proactive measures to protect brain health.

For a deeper look at the broader implications of CTE in sports, see our analysis of the NFL players CTE study: 1 in 4 affected by brain disease. That piece explores how the condition affects players beyond the professional level.

Additionally, the CTE in football players: a health crisis we can't ignore provides context on the urgent need for reform and awareness across all levels of the sport. These resources offer valuable insights for anyone concerned about the future of football.