Timothy Caulfield
banner
caulfieldtim.bsky.social
Timothy Caulfield
@caulfieldtim.bsky.social
Professor of health law and science policy, author, speaker, and commentator. #ScienceUpFirst

Linktree: https://linktr.ee/caulfieldtim
🚨 THIS is the impact of lies & doubtmongering. 🚨

Despite a GROWING body of evidence showing the safety of ALL these vaccines, more doubt safety.

via @kffhealthnews.org @kff.org cc @cmadocs.bsky.social @scienceupfirst.bsky.social @drjengunter.bsky.social
February 10, 2026 at 8:34 PM
Doctors warn against dangers of health misinformation from AI sources www.ctvnews.ca/health/artic... via @cmadocs.bsky.social cc @scienceupfirst.bsky.social

“It’s alarming because a lot of that information is misinformation, disinformation, and false information."
Doctors warn against dangers of health misinformation from AI sources
The Canadian Medical Association says doctors are worried that more of their patients are turning to artificial intelligence for health advice — and getting answers that put them in danger.
www.ctvnews.ca
February 10, 2026 at 6:09 PM
Is "social" drinking good for health? It's complex.

Drinking Is a ‘Social Lubricant.’ That’s Not Always a Good Thing. www.nytimes.com/2026/02/10/h...

Dr. Oz “made it seem that alcohol is the cure to social problems and loneliness. But it’s also predictive of more problematic behavioral problems.”
Drinking Is a ‘Social Lubricant.’ That’s Not Always a Good Thing.
www.nytimes.com
February 10, 2026 at 5:46 PM
🚨 Canadians recognize that health misinformation does significant harm.

90% (!) believe the government has a responsibility address the issue!

via @cmadocs.bsky.social cc @scienceupfirst.bsky.social
February 10, 2026 at 4:50 PM
Yes, yes, yes, yes, yes! And yes.

Science Communication Should Be a Core Competency in Medical Training www.medpagetoday.com/opinion/seco... by @drkatiesuleta.bsky.social @funsizeimmuninja.bsky.social
Opinion | Science Communication Should Be a Core Competency in Medical Training
We've seen how profoundly things unravel when communication breaks down
www.medpagetoday.com
February 10, 2026 at 4:06 PM
Ivermectin = ideological flag.

Ugh.

National Cancer Institute studying ivermectin www.statnews.com/2026/02/10/i... via @statnews.com

“I am shocked and appalled." Taking funds from "promising research in order to do a preclinical study based on nonscientific ideas. It’s absurd.”
National Cancer Institute studying ivermectin’s ‘ability to kill cancer cells,’ alarming career scientists
The National Cancer Institute is studying ivermectin as a potential cancer treatment, according to its top official, alarming career scientists.
www.statnews.com
February 10, 2026 at 3:34 PM
Colostrum Supplement Sales Are Booming, But the Science Is Thin www.bloomberg.com/news/article...

Celebs. Influencers. Iffy science. Classic supplement hype cycle.

Me: Immediate interest & lots of hype. But upon closer examination, "any positive effects 'become small or nonexistent.'"
Colostrum Supplement Sales Are Booming, But the Science Is Thin
Celebrity endorsements have driven more than $22 million in US sales, a 3,000% increase from two years earlier.
www.bloomberg.com
February 10, 2026 at 3:07 PM
Despite all the noise, reality...👇

"Ongoing peer-reviewed evidence supports the safety & effectiveness of immunizations against Covid-19, RSV, & influenza...."

Updated Evidence for Covid-19, RSV, & Influenza Vaccines for 2026 www.nejm.org/doi/full/10....

Soon: on CTV Edmonton!
Updated Evidence for Covid-19, RSV, and Influenza Vaccines for 2025–2026 | NEJM
Changes in the vaccine advisory process in the United States have disrupted immunization guidance, which reinforces the need for independent evidence review to inform decisions regarding immunizati...
www.nejm.org
February 10, 2026 at 2:27 PM
2 to 3 Cups of Coffee a Day May Reduce Dementia Risk. But Not if It’s Decaf. www.nytimes.com/2026/02/09/h...

But there's a "limit to how much caffeine our bodies can metabolize." I find that limit, dammit! 💪

#TeamCoffee! #TeamConfirmationBias!
2 to 3 Cups of Coffee a Day May Reduce Dementia Risk. But Not if It’s Decaf.
www.nytimes.com
February 9, 2026 at 10:17 PM
Very obviously. Liar gonna lie.

RFK Jr misled Senate during confirmation, Congress members and Hawaii governor say www.theguardian.com/us-news/2026...
RFK Jr misled Senate during confirmation, Congress members and Hawaii governor say
Newly revealed emails undermine Kennedy’s testimony about 2019 Samoa trip ahead of deadly measles outbreak
www.theguardian.com
February 9, 2026 at 8:30 PM
My experiences with Deepak Chopra? Um, not great.

A few years back he spread nasty lies about me. Questioned my integrity. And sent his online trolls after me. Not fun.

A deliberate strategy to use his "spiritual" influence to silence a critic.

The worst.

Namaste.

www.cbc.ca/news/canada/...
Deepak Chopra, Timothy Caulfield end Twitter feud | CBC News
Author Deepak Chopra and University of Alberta professor Timothy Caulfield spent many days butting heads on Twitter. But finally, there is a happy ending.
www.cbc.ca
February 9, 2026 at 7:05 PM
Let's highlight the Deepak Chopra – an OG wellness grifter – Epstein connection.

Chopra had regular contact with Epstein, including offensive emails
www.yahoo.com/entertainmen...

Good reminder that pushing exploitive pseudoscience for profit requires a pretty f*cked up moral compass.
'God Is A Construct, Cute Girls Are Real': Bestselling Spiritual Author Deepak Chopra's Emails To Epstein Revealed
Deepak Chopra has spent decades teaching millions of people how to transcend the material world. His 95 books promise spiritual enlightenment through meditation, higher consciousness, ... Read More
www.yahoo.com
February 9, 2026 at 6:23 PM
So much cortisol hype in wellness world... 👇

Do you need to control your cortisol? Probably not medicalxpress.com/news/2026-02...

"...no proven over-the-counter treatments for high or low cortisol..."

"A one-off cortisol blood test won't provide useful information for most people..."
Do you need to control your cortisol? Probably not, doctors say
Cortisol, what is known as the stress hormone, is the talk of the internet. Wellness influencers warn about the various symptoms of chronically high cortisol: waking up at 3 a.m., swollen "cortisol fa...
medicalxpress.com
February 9, 2026 at 4:54 PM
Research reveals which popular generative AI chatbots lie www.rit.edu/news/researc...

"...LLM could not distinguish between its very own self-generated truths and lies all the time."

Can nudge to agree. This means "...LLMs can provide an echo chamber to persistent users when they press..."
Research reveals which popular generative AI chatbots lie
RIT and Georgia Tech artificial intelligence experts have developed a framework to test hallucinations on ChatGPT, Gemini, Grok, Claude, and DeepSeek.
www.rit.edu
February 9, 2026 at 4:33 PM
Allergy Misinformation Across Social Media Platforms www.sciencedirect.com/science/arti... by @sabivm.bsky.social et al.

"Allergy misinformation achieves high engagement with limited public correction..."

31%: natural cure promotion

24%: IgG testing endorsement

18%: medication fearmongering
February 9, 2026 at 4:06 PM
The CLEAR and OBVIOUS inaugural winner?

RFK Jr! 🏆

So so so many harmful lies.

open.substack.com/pub/garyschw... by @garyschw.bsky.social
Introducing the “Health News Pinocchio Award”
For the most egregious recent lie about health care that caught my eye.
open.substack.com
February 9, 2026 at 3:15 PM
🚨 Key.

Peter Attia, the Epstein Files and the Lie Propping Up Big Wellness www.nytimes.com/2026/02/07/o...

"Many health influencers have ties to supplement companies, make money from lawsuits against vaccine companies or receive financial backing from politically powerful billionaires..."
Opinion | Peter Attia, the Epstein Files and the Lie Propping Up Big Wellness
www.nytimes.com
February 7, 2026 at 9:16 PM
Emotional resonance & participatory misinformation: misinforeview.hks.harvard.edu/article/emot...

"Online misinformation thrives in environments of uncertainty, where emotional cues fill in gaps left by ambiguous or contested facts."

"...emotional performance influences assessments of credibility"
Emotional resonance and participatory misinformation: Learning from a K-pop controversy | HKS Misinformation Review
In today’s digital media environment, emotionally resonant narratives often spread faster and stick more firmly than verifiable facts. This paper explores how emotionally charged communication in onli...
misinforeview.hks.harvard.edu
February 7, 2026 at 6:28 PM
Example of how bad research can damage policy & perceptions...👇

A 20-year-old study claiming a baby died from opioid poisoning through breast milk under fire www.cbc.ca/news/health/... w @davidjuurlink.bsky.social

“...falsification of toxicological data, authorship issues, and ethical concerns”
Was a Canadian baby poisoned by breast milk? Experts say no. Yet a 20-year-old case study remains influential | CBC News
A controversial Canadian medical paper, which pinned a baby’s death on codeine passed through breastmilk, is under renewed scrutiny a full two decades after it was published. The paper sparked a sweep...
www.cbc.ca
February 7, 2026 at 5:52 PM
Complex, but debunking CAN make a difference!

Study: Do Beliefs Echo? On the Persistent Effects of Misinformation After Effective Corrections www.tandfonline.com/doi/full/10....

"...the correction was demonstrably effective, we find no evidence that #misinformation continues to shape attitudes."
Do Beliefs Echo? On the Persistent Effects of Misinformation After Effective Corrections
Does misinformation continue to influence political attitudes even after it has been effectively corrected? According to some influential studies, the answer is yes: while corrections may eliminate...
www.tandfonline.com
February 7, 2026 at 5:39 PM
The Placebo Myth Picked the Wrong War www.mcgill.ca/oss/article/... by @jonathanjarry.bsky.social

"It’s possible we are looking at a Frankenstein’s creature of a placebo myth, which is still regularly cited in the medical literature as fact."
The Placebo Myth Picked the Wrong War
There’s a medical myth with which a friend of mine and I have become obsessed: this idea that scientific research into the “placebo effect” began in earnest during World War II. As I’ve written before...
www.mcgill.ca
February 7, 2026 at 5:19 PM
Sum: Just assume RFK Jr is full of (evil) sh*t.

Newly revealed emails undermine RFK Jr testimony about 2019 Samoa trip ahead of measles outbreak
www.theguardian.com/us-news/2026...
Newly revealed emails undermine RFK Jr testimony about 2019 Samoa trip ahead of measles outbreak
Kennedy later said the purpose of his trip had nothing to do with vaccines. US embassy and UN staff at the time said otherwise, emails show
www.theguardian.com
February 6, 2026 at 11:54 PM
He’s like a child.

His actions are so over the top offensive & infantile that it feels like satire. Alas, nope.
February 6, 2026 at 11:18 PM
Alarming’ and unproven autism treatments abound theijf.org/article/fake... @bethanylindsay.bsky.social

@marcozenone.bsky.social: “They use some really smart — unfortunately — tactics that really gain the trust of parents & it gives the illusion that this is a real option and scientifically proven."
‘Alarming’ and unproven autism treatments abound on Facebook. Is it time for Canada to tighten regulations?
Public service journalism
theijf.org
February 6, 2026 at 10:40 PM
So many complex variables associated with dementia (sleep, hearing loss, hypertension).

Poor sleep may account for a large share of dementia cases www.sciencenews.org/article/poor...

From study: "Addressing insomnia could be a promising target for dementia prevention efforts in aging populations."
Poor sleep may account for a large share of dementia cases
Researchers estimate that roughly 12 percent of U.S. dementia cases could be tied to insomnia.
www.sciencenews.org
February 6, 2026 at 10:25 PM