ER Editor: A reminder that acetaminophen / Tylenol goes under different names in different countries. In France, it’s called Doliprane and is a very popular, go-to drug. It’s also called paracetamol.
A disturbing claim below is that more than 600 other medications also contain some degree of acetaminophen.
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Tylenol: From Painkiller to Empathy Killer
Why America’s most trusted drug may be quietly numbing our humanity
For decades, the focus has been on liver damage and accidental overdoses. But the deeper story—the one still hiding in plain sight—is more disturbing: even a single dose of acetaminophen (Tylenol’s active ingredient) measurablyblunts human empathy, dulls positive emotions, and increases risk-taking behavior.
ER: A reminder that a recurring theme around the Covid vaccinated is how their personalities seem to have changed and not for the better. Eminent people such as psychiatrist Dr. Peter Breggin have weighed in on this.
This isn’t just a matter of personal health. It’s a social and spiritual crisis. If one-quarter of U.S. adults are taking Tylenol weekly, we may be medicating away our collective capacity for compassion. (Ditto for all our countries.)
In a landmark 2015 Psychological Science study, titled “Over-the-Counter Relief From Pains and Pleasures Alike,” researchers at Ohio State University gave healthy adults a single standard 1,000 mg dose ofacetaminophen (Tylenol) and then exposed them to emotionally charged images—ranging from disturbing to uplifting.
The outcome was unambiguous:
Disturbing images were rated less negatively.
Uplifting images were rated less positively.
Across the board, participants reported feeling less emotional arousal, even when viewing the most extreme stimuli.
Brain research helps explain why: acetaminophen dampens activity in the anterior insula and anterior cingulate cortex—regions responsible for processing both physical pain and emotional resonance. These are the same circuits that allow us to feel empathy and to be moved by joy, awe, or sorrow. nihms703262.[sic]
The authors concluded:
“Acetaminophen attenuates individuals’ evaluations and emotional reactions to negative and positive stimuli alike… Rather than being labeled merely a pain reliever, acetaminophen might be better described as an all-purpose emotion reliever.”
2. Tylenol Reduces Empathy for Others’ Suffering
In 2016, researchers at Ohio State University published a Social Cognitive and Affective Neuroscience study titled “From Painkiller to Empathy Killer” (Mischkowski, Crocker, & Way, 2016). Participants who took a standard1,000 mg dose of acetaminophen showed significantly reduced empathic concern when reading scenarios of people experiencing social or physical pain compared to those on placebo.
Neuroimaging explained why: acetaminophen dampened activity in the anterior insula and anterior cingulate cortex—the same brain regions that fire when we experience physical pain ourselves and when we empathize with the pain of others. In effect, Tylenol blunts the shared circuitry of compassion.
The story didn’t end there. In 2019, another study in Frontiers in Psychology confirmed the effect for positive empathy—our ability to share in others’ happiness (Randles, Harms, & Finn, 2019). After taking acetaminophen, participants reported less joy when hearing about others’ uplifting experiences. The researchers warned:
“Acetaminophen reduces affective reactivity to others’ positive experiences. Because positive empathy underlies prosocial behavior, this raises concern about the societal impact of excessive acetaminophen use.”
The Implication: Tylenol doesn’t just ease your headache—it quietly severs the neural bridges of human connection, dulling both our sensitivity to suffering and our capacity to celebrate joy with others.
3. Tylenol Increases Risk-Taking
In 2020, Baldwin Way and colleagues at Ohio State published a Social Cognitive and Affective Neuroscience paper showing that acetaminophen (Tylenol) not only blunts empathy but also alters how people perceive risk.
In a series of experiments:
189 college students were randomly given either 1,000 mg of acetaminophen or placebo. They then rated the danger of activities like bungee jumping, walking alone at night in unsafe areas, or having unprotected sex.
Those who had taken acetaminophen consistently judged these behaviors as less risky.
In a second test, 545 students performed the “balloon analogue risk task,” where participants inflate a virtual balloon to earn money, knowing it might burst. The Tylenol group pumped the balloonssignificantly more times, resulting in more bursts and more losses—clear evidence of blunted fear of negative consequences
The mechanism seems to mirror acetaminophen’s emotional numbing effects: by dulling negative affect, the drug also dulls the anxiety signals that normally restrain risky behavior.
The scale of exposure is staggering. Around 52 million Americans take acetaminophen every week. Even slight shifts in how people evaluate risk, magnified across such widespread use, could ripple through society—affecting decisions from health and safety to finances, relationships, and beyond.
The Implication: Tylenol doesn’t just dull pain and empathy. It can tip the scales of judgment itself, making dangerous choices feel less threatening. Multiply this by millions of daily users, and the “safe, everyday painkiller” becomes a silent force reshaping collective behavior.
The Numbers Don’t Lie
¼ of American adults use Tylenol weekly.
600+ medications contain acetaminophen, from cold remedies to prescription opioids
110,000 injuries and deaths per year are linked to acetaminophen
Empathy reduction is measurable after a single dose
This is not a fringe concern. It is a public health crisis with spiritual dimensions.
The Deeper Question
What happens to a society when its most common drug blunts compassion, dulls joy, and fuels reckless risk-taking?
We are not just facing an epidemic of liver toxicity. We are facing a subtle epidemic of soul toxicity. Tylenol, in numbing pain, may be numbing our humanity itself.
The time has come to ask: Is the cost of convenience worth the erosion of empathy?
Learn more about Tylenol’s long established risks in our series below:
Broken Trust: The Tylenol Cover-Up That May Have Damaged Millions of Children
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