NFL Neurodegenerative Risk
New Study Finds NFL Players Face Four Times Higher Neurodegenerative Disease Death Risk
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Key Points
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Dementia-specific mortality among NFL players is 3.8 times higher than in the general population, with elevated mortality also observed for other neurodegenerative diseases such as Alzheimer's-era dementia, ALS, and Parkinson's disease.
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STARS stands for Selection Through Athletic Resilience Survivor, a concept used to explain why traits that drive athletic success also correlate with longer survival, yet may not protect against neurodegenerative brain disease.
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The study examined 19,824 NFL players who competed between 1960 and 2019, making it the largest retrospective cohort of its kind to date.
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Despite NFL players having lower overall mortality on average, neurodegenerative mortality is nearly four times higher than expected after adjusting for other risk factors.
Former NFL players are nearly four times more likely to die from neurodegenerative diseases than the general public, according to a sweeping new study by researchers at Boston University, Mass General Brigham, and the Concussion & CTE Foundation iHeart News. The study tracked 19,824 players who competed between 1960 and 2019 — the largest cohort of its kind ever assembled.
Dementia-specific mortality among NFL players is 3.8 times higher than expected. Elevated death rates were also found for Alzheimer's, ALS, and Parkinson's disease. Despite this, NFL players live longer on average than the general public — a paradox researchers say makes the brain-disease risk even harder to detect Head Topics.
Fourfold Brain Disease Risk Across All Positions
Researchers found neurodegenerative mortality was roughly four times higher among NFL players after adjusting for other risk factors iHeart News. The conditions studied included dementia, ALS, Parkinson's, and Alzheimer's-related disease. The findings held across the full 60-year span of the study.
Linemen show the strongest risk among all positions. Researchers link this to higher body weight and longer exposure to repetitive head impacts during play. Even so, every position group showed elevated neurodegenerative mortality compared to the general population Fox Sports Radio.
The STARS Paradox: Fit Bodies, Vulnerable Brains
NFL players live longer overall than most Americans. Researchers call this the STARS effect — Selection Through Athletic Resilience Survivor. It means the traits that make someone a professional athlete — physical toughness, discipline, and access to good medical care — also help them live longer iHeart News.
But those same traits mask a hidden danger. Because NFL players are so healthy overall, their elevated brain-disease risk is easy to underestimate. Researchers warn the true neurodegenerative risk could actually be stronger than the four-times figure suggests Head Topics.
Repetitive Head Impacts Drive Risk Beyond Normal Aging
Age is still the biggest factor in neurodegenerative disease. But the study found that repetitive brain impacts push the risk well beyond what age alone would cause iHeart News. This points directly at the physical nature of football — where collisions are constant and unavoidable.
High-profile ALS cases have sharpened public attention on this issue. Former NFL star Chris Johnson is among the players whose illness has intensified calls for action. Researchers say the data now makes it harder to dismiss the link between football and brain disease as coincidence Fox Sports Radio.
What the Study Means for the Future of Football Safety
This is the largest study of its kind ever conducted on NFL players Head Topics. Its 60-year scope — covering nearly 20,000 players — gives researchers a clearer picture than any previous work. The size of the dataset makes the findings difficult to ignore.
The authors did not call for an end to football. But they say the evidence demands stronger protections against head impacts at every level of the sport iHeart News. The study adds weight to ongoing efforts to redesign helmets, change tackling rules, and limit full-contact practice sessions.
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