Study Indicates 25% of NFL Players May Develop CTE in Their Lifetime

<p>The NFL is actively working to promote safe play for all players, particularly concerning head injuries.</p><p>Chronic traumatic encephalopathy (CTE) has been significantly linked to former professional football players, leading to ongoing discussions about the potential impact on current and future NFL players.</p><p>New data published in <a href="https://www.bmj.com/content/394/bmj-2026-100418" rel="noopener noreferrer nofollow" target="_blank">The BMJ</a> from a recent six-year research period revealed concerning findings.</p><p>The study found that at least one in every four individuals who have played in the NFL may expect to develop CTE at some point in their lives.</p><p>The research involved 878 former NFL players who died between 2016 and 2021, with ages ranging from their 20s to their 80s. Of these, at least 215 were diagnosed with CTE at some stage.</p><p>This represents 24.5%, with the actual prevalence likely being higher, as 643 of the brains were not examined.</p><p>If these findings were applied to the current NFL, which has 1,696 players on active rosters across all 32 teams, approximately 415 players could be diagnosed with CTE.</p><p>CTE can only be definitively diagnosed post-mortem after examining the brain. The neurodegenerative disease is caused by repeated head impacts and severe head trauma, with symptoms including memory loss, mood swings, and erratic behavior.</p><p>While CTE was first identified in boxers, it has become increasingly associated with football players due to the frequent head impacts sustained during play. It has also been found in athletes from other sports such as hockey and rugby.</p><p>The connection between CTE and football became widely recognized following diagnoses of notable players like Junior Seau, Mike Webster, and Frank Gifford after their deaths. Webster was referred to as "Patient Zero" after Dr. Bennet Omalu examined his brain and made the first diagnosis of CTE in an NFL player, which contributed to a growing awareness of concussion-related issues in the sport.</p><p>Dr. Julian Bailes, a neurosurgeon and chief medical advisor for Q-30 Sports Science, has conducted extensive research on CTE, concussions, and repetitive subconcussive impacts. He has authored over 300 publications and has previously advised the NFL Players Association, NCAA, and Pop Warner Football.</p><p>In response to the study, Dr. Bailes stated it "should be a call to action for everyone involved in football."</p><p>"We have made tremendous progress in recognizing and managing concussions, but the science increasingly tells us that diagnosed concussions are only part of the equation," Dr. Bailes said in a statement. "Repetitive head impacts accumulated over years of play matter, and we need to bring the same urgency we’ve applied to understanding CTE to preventing and reducing the forces experienced by the brain in the first place.</p><p>"That means continuing to advance rules, training, equipment, and new approaches to brain protection at every level of the game. This should not be approached as an all-or-nothing assignment. The next frontier in athlete safety must be proactive brain protection."</p><p>One potential proactive measure would be to eliminate repeated head impacts, which researchers indicate could prevent CTE. However, this would significantly alter the game of football, especially at the professional level.</p><p>The NFL stated, "The NFL continuously strives to make the game of football safer, including by implementing strategies to reduce concussions and head impacts. The NFL remains committed to ensuring that the NFL community has access to robust — and expanding — resources to enhance their physical and mental well-being."</p><p>The NFL Players Association also commented that the findings should serve as a call to action across the entire football ecosystem.</p><p>During the 2025 NFL season, there were 168 documented in-game concussions, representing a 30% increase from the 129 recorded in the 2024 season. A total of 538 evaluations and 26 medical timeouts were also reported.</p>