CTE in football players is a health crisis. It’s time for us to stop watching

US news | The Guardian · collected 2026-09-05 · by Nathan Kalman-Lamb and Derek Silva
Read the original at US news | The Guardian ↗

Summary

A new study published in the British Medical Journal found that 215 out of 235 donated brains from deceased NFL players between 2016 and 2021 showed evidence of chronic traumatic encephalopathy (CTE), with a prevalence rate estimated to be at least 24.5% and as high as 97.7%. The study suggests that repeated blows to the head, common in football, increase the risk of developing CTE, which can lead to permanent cognitive impairment and other health issues. According to existing research, participation in football doubles the chances of developing CTE every 2.6 years, and increases the risk of Parkinson's disease by 61%. This has led some experts to label CTE as a potential public health crisis, particularly given that children are often enrolled in tackle football at a young age.
Written by the local model on 2026-09-06, using this article's own text rather than the other coverage of the same event (that is the story summary below).

Signals How these are calculated →

Claims extracted
39
claim-shaped sentences
Uncertain
8%
3 of 39 hedged
Leaning
Leans strongly left
of the writing, not the subject
Publisher trust
95.7
red-flag proxy, not a credibility rating
Outlets on this story
2
Sports
Narrative spread
1
articles carrying this framing
Analyzed 2026-09-06 · how these are computed

AI analysis (generated at analysis time, not now)

Story summary

The latest research suggests that at least one in four former NFL players who died between 2016 and 2021 had chronic traumatic encephalopathy (CTE)**. A study published in the British Medical Journal found that of the 235 donated brains of former players from this period, 215 showed evidence of CTE. This translates to a minimum of 24.5% and a maximum of 97.7% of all deceased players from this time frame having CTE. The repeated blows to the head in football are linked to this disease, which can cause clinical depression, apathy, executive dysfunction, and cognitive impairment. As the new NFL season begins, it's clear that watching football comes with a significant health risk for players.

Written for “Football Players' Brain Health Crisis” on 2026-09-07, grounded in this article and the 1 other(s) covering the same event.
Why this leaning score
The article's own words the score was based on. Each is quoted verbatim and was checked against the article text before being stored, so you can find it in the original.
Score -0.85 Confidence high
Leaning score -0.85 for article 5059 (high confidence, 1 verified quote) · logged 2026-09-06

Story

📰 Football Players' Brain Health Crisis
Sports · 2 article(s) covering the same event.

How this is being covered How these are calculated →

Article leaning vs. publisher reliability
Source leaning vs. consistency

Compared with similar articles

This article reads leans strongly left and hedges 8% of its claims. Each row says how that neighbour differs.
Matt Bufton: Can the NFL save society? different event · 100%
National Post
⚖️ Leans right further right than this 🔴 8% hedged 3 of 38 📰 publisher trust 96
“Article B does not mention CTE or any study about NFL players with CTE”
Washington Examiner
⚖️ Leans left further right than this 🔴 6% hedged 2 of 31 📰 publisher trust 96
“Both articles reference a recent study published in the British Medical Journal (BMJ) in August 2026, which found that at least one in four former NFL players have chronic traumatic encephalopathy (CTE).”
CBC | Top Stories News · 0.88 cosine similarity
⚖️ Leans left further right than this 🔴 11% hedged 4 of 38 📰 publisher trust 95

Publisher

US news | The Guardian · 161 article(s) · 0 correction(s) detected
SignalValueWeight
Correction rate 0.000 0.4
Uncertainty density 0.087 0.25
Assertive mismatch rate 0.000 0.35
No corrections detected for this publisher. That may mean careful reporting, or simply that nothing has been checked.

Who wrote this

Nathan Kalman-Lamb
1 article(s) here · 1 carrying a prediction
🔮 The implication of that finding cannot be overstated: it suggests that CTE is a disease that may affect a substantial share of those who spend their careers in the NFL.
The only article under this byline in the corpus.
Derek Silva
1 article(s) here · 1 carrying a prediction
🔮 The implication of that finding cannot be overstated: it suggests that CTE is a disease that may affect a substantial share of those who spend their careers in the NFL.
The only article under this byline in the corpus.

Topics

America NFL the British Medical Journal the United States the Wall Street Journal

Subjects

NFL ORG · 3× America GPE · 2× Sasse PERSON · 1× the British Medical Journal ORG · 1× the United States GPE · 1× the Wall Street Journal ORG · 1×

Narrative

Because, perhaps the most disconcerting statistic is one that we already know: every 2.6 years of participation in football doubles the chances of developing CTE, in large part because a typical high school or college football season can deliver between 600 and 1,000 subconcussive blows to a single athlete, and that these blows heavily predict later-life clinical depression, apathy, executive dysfunction and cognitive impairment.
framing: assertive · carried by 1 article(s) · first seen 2026-09-06
🔮 The implication of that finding cannot be overstated: it suggests that CTE is a disease that may affect a substantial share of those who spend their careers in the NFL.
2026-09-06 · US news | The Guardian
CTE in football players is a health crisis. It’s time for us to stop watching · assertive framing

Claims (39 extracted, 3 hedged)

As a new NFL season begins this Wednesday, the danger of America’s most-watched sport has never been more clear. asserted
danger → begin → sport
A new and widely circulated study published in the British Medical Journal examined the donated brains of former NFL players who died between 2016 and 2021 and compared them with the overall number of players who died during that period. asserted
who → circulate → period
Of the 235 donated brains in that period, 215 had evidence of the degenerative brain condition chronic traumatic encephalopathy (CTE). asserted
215 → donate → condition
That group of 215 comprised 24.5% of the former players who died during that period in total. asserted
who → comprise → total
Given the finding, the study’s authors estimate that the prevalence of CTE among players who died in that period was at minimum 24.5% to a maximum of 97.7%, with the actual rate likely somewhere in between. asserted
rate → give → between
The implication of that finding cannot be overstated: it suggests that CTE is a disease that may affect a substantial share of those who spend their careers in the NFL. uncertain
who → overstate → NFL
are being exposed to the same fundamental risk: the repeated blows to the head that have been linked to the disease. asserted
that → expose → disease
When we watch players deliver and receive those devastating if also thrilling hits, when we watch the lines collide on every play, we are watching the repetitive head trauma that puts players at risk of developing CTE. asserted
that → watch → CTE
We are watching lives being permanently altered in ways that will in the end result in heartbreak. asserted
that → watch → heartbreak
And yet, as recently as Friday, the Wall Street Journal published an op-ed by former senator Ben Sasse that makes the titular claim “America needs its boys to play football.” uncertain
boys → publish → football
That sentiment isn’t just a vestige of should-be-antiquated gender politics – it is better understood as tantamount to child endangerment. asserted
it → antiquate → endangerment
Because, perhaps the most disconcerting statistic is one that we already know: every 2.6 years of participation in football doubles the chances of developing CTE, in large part because a typical high school or college football season can deliver between 600 and 1,000 subconcussive blows to a single athlete, and that these blows heavily predict later-life clinical depression, apathy, executive dysfunction and cognitive impairment. asserted
blows → know → depression
We also know that participation in football increases the chances of developing Parkinson’s disease by 61% compared with athletes in other organized sports (and that risk is 2.93 times greater for those who play football at the college/pro level compared with youth/high school). asserted
who → know → school
When you put these figures in the context of the reality that in many parts of the United States, children are enrolled in tackle football as early as 5 years old, it becomes clear that this is a potential public health crisis. asserted
this → put → football
The statistics only tell part of the story. asserted
statistics → tell → story
In our 2024 book The End of College Football: On The Human Cost of an All-American Game, we talked to former big-time college football players – a level lower than the NFL, meaning fewer total head impacts than those at the pinnacle of the game – about how their lives had been affected by head injury in the sport. asserted
lives → talk → sport
These players understood that their lives were at stake. asserted
lives → understand → stake
One told us frankly: “I feel like there’s a good chance that I will have CTE. asserted
I → tell → CTE
Especially if I kept playing, it’ll probably be guaranteed. asserted
it → keep → ?
But I won’t find out until I die, which isn’t comforting at all.” asserted
which → find → ?
Another explained, “The scariest part about that for me is I don’t know the price that I paid in terms of cognitive ability, in terms of how many concussions did I play through, how many times did I have a concussion and didn’t report it?” asserted
I → explain → it
A third player told us that his career had bequeathed him a “panic disorder related to probably all the sub-concussive blows”. asserted
career → tell → blows
One player said that after enduring 10 concussions, “I could barely do school. … uncertain
I → say → school
I would forget what I was talking about mid-sentence. asserted
I → forget → what
I’d be forgetting everything that happened like 10 minutes ago. asserted
that → forget → everything
I would just completely zone out sometimes. asserted
I → zone → ?
I couldn’t really control it. asserted
I → control → it
Still a different player told us, “I played with guys in the NFL that took their own lives and then were diagnosed with CTE when they did the autopsy, so you think about that, like, ‘Boy, I hit my head against that guy’s head, so what’s going on with me if that was obviously was going on with him?’ asserted
that → tell → him
No one wants to see football players die for this sport. asserted
players → want → sport
In 2025 alone, nine former NFL players under the age of 48 died. asserted
players → die → 48
Seven of those deaths were a result of suicide, underscoring the fears surrounding the long-term neurological and psychiatric consequences of repeated head trauma. asserted
Seven → underscore → trauma
The tragedy of death by football is thus happening whether we realize it or not. asserted
we → happen → it
Far too much evidence now exists that the sport systematically produces asserted
sport → exist → ?
life-altering head trauma for us to continue with business as usual when we know that football is morally unsustainable asserted
football → alter → business
The NFL will of course never turn itself off. asserted
NFL → turn → itself
So, starting this season, it’s up to us as fans to do that. asserted
it → start → that
- In the US, you can call or text the National Suicide Prevention Lifeline on 988, chat on 988lifeline.org, or text HOME to 741741 to connect with a crisis counselor. asserted
you → call → counselor
In the UK and Ireland, Samaritans can be contacted on freephone 116 123, or email jo@samaritans.org or jo@samaritans.ie. asserted
Samaritans → contact → jo@samaritans.org
Other international helplines can be found at befrienders.org asserted
helplines → find → befrienders.org
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