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caulfieldtim.bsky.social
Professor of health law and science policy, author, speaker, and commentator. #ScienceUpFirst Linktree: https://linktr.ee/caulfieldtim
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How to destroy a country’s knowledge base, damage science, slow efforts to combat chronic disease, and worsen public health? 👇👇👇👇

Google searches for information about cancer lead to targeted ads from alternative clinics theconversation.com/google-searc... by (colleagues!) @marcozenone.bsky.social & Marcon 🙏 "It’s imperative that Google take action to restrict its ads mechanism from being used in this exploitative manner."

"Natural" ≠ Better! The Caveman Skin Trend on TikTok is Clean Beauty at its Worst thekit.ca/beauty/skin/... Me: "...that idea of ‘caveman,’ returning to this mythical past where allegedly things were better—where we died at age 22 from an infectious disease…”

Very, very obviously MAHA ain't interested in tackling chronic disease. BS "science" & political grandstanding ain't a health strategy. Dismantling CDC’s chronic disease center ‘looks pretty devastating’ to public health experts www.statnews.com/2025/06/04/c... via @statnews.com

Misinformation does harm. Doubtmongering does harm. Junk "science" does harm. Measles Vaccination Rates Are Plummeting Across the U.S. time.com/7290450/meas... We must push back against the darkness.

RFK Jr.’s stance on Covid vaccines for pregnant women is profoundly unethical www.statnews.com/2025/06/03/c... via @statnews.com "Covid vaccines in pregnancy offer an established benefit to pregnant women and their babies." "Millions of pregnant women have received Covid mRNA vaccines..."

"...exposure to health misinformation that smoking/alcohol drinking can protect against COVID-19 was associated with self-reported increases in tobacco and alcohol consumption..." Exposure to health misinformation about COVID: tobaccocontrol.bmj.com/content/30/6...

This BS either: 1) he believes, and if so... yikes 2) he thinks is funny, and if so... yikes 3) a distraction so we ignore the destruction of democracy 4) all the above Yes, Trump re-shared post claiming Biden was executed in 2020 & replaced by clones www.snopes.com/fact-check/t...

"...confirming a widespread decline in MMR vaccination rates in the US after the COVID-19 pandemic..." Trends in County-Level MMR Vaccination Coverage in Children in the United States jamanetwork.com/journals/jam... Ugh. We can't let the doubtmongers win!

That Cup of Coffee May Have a Longer-Term Perk www.nytimes.com/2025/06/02/w... "...adds to a large body of evidence linking coffee to longer lives and various health advantages..." Association research. Still, #TeamCoffee! #TeamConfirmationBias!

Sum: ignore seed oil fearmongering! Pesky, Inconvenient Facts About Seed Oils conscienhealth.org/2025/06/pesk... "...the facts of these findings challenge deeply held beliefs that seed oils are harmful to cardiometabolic health." The science "contradicts the seed oils are toxic creed."

Harmful bunk everywhere... More than half of top 100 mental health TikToks contain misinformation, study finds www.theguardian.com/society/2025... "...short-form, attention-grabbing soundbites can sometimes overshadow the more nuanced realities of qualified therapeutic work"

FDA head Marty Makary today called #CDC 's vaccine expert panel a "kangeroo court" that "rubber stamps" every vaccine. 1. Vaccines come to #ACIP after approval by FDA. 2. ACIP doesn't automatically recommend as broad use as FDA does. Eg: RVS vaccines for adults. www.statnews.com/2025/06/01/f...

Sum: No, no, no, no! Don't fall for the "detox" lie! Extreme cleanses and detox diets: Do they work? www.ctvnews.ca/edmonton/ctv... Enjoyed this discussion on CTV Edmonton!

Study links preteen physical activity with better mental health later wapo.st/43URIAB "Physical activity decreased the risk of anxiety by almost 40% for boys at both 5 and 11..." Correlation. Still, #move!

The RFK Jr & Makary's approach...👇 They spend years sowing doubt about vaccines with lies and spin. Then they point to public doubt – which, again, THEY created – as a justification for not supporting vaccines. So deeply illogical & disingenuous it feels like satire. Ugh.

Cringe. Listening to Makary spin on vaccines SO painful. He MUST know this is doubtmongering BS. He MUST know he is facilitating an anti-science authoritarian regime. Obviously, it is misinformation that has caused the public doubt. www.youtube.com/watch?v=WGH2... via @facethenation.bsky.social

Sum: Doubtmongering BS. mRNA, once lauded as a scientific marvel, is now a government target www.statnews.com/2025/06/02/m... via @statnews.com Reality: "...among the most-studied vaccines in history." But: "...anti-vaccine influencers have continued spreading the idea that mRNA is harmful."

"Detox" = red flag for bunk! 🚩🚩🚩🚩 A flood of products promises to 'detox' the body. But do you really need any of them? [Spoiler: NO!] www.cbc.ca/news/health/... Soon on CTV Edmonton to talk cleanses, detoxes, and other BS!

COVID-19 Vaccines in the Era of RFK Jr. www.newyorker.com/news/the-led... by @dhruvkhullar.bsky.social "Science is a process, and if we follow its procedures with care we can get closer to the truth." "The anti-establishment has become the establishment, and its decisions will affect us all."

Destroying independence, embracing lies, & promoting distrust ain't "gold-standard." We can't let the darkness win! 💪 Why Trump’s push for ‘gold-standard science’ has researchers alarmed wapo.st/43ouuCU Will "...damage science even as it co-opts the language of a movement aimed at improving it."

Yes, most Canadians strongly support vaccination.

“It’s just inconceivable how shortsighted this is.” “The H.I.V. pandemic will never be ended without a vaccine, so killing research on one will end up killing people.” Dark Age 2.0 Trump Ends Search for an H.I.V. Vaccine www.nytimes.com/2025/05/30/h...

Great analysis.👇 MAHA Report Mostly ‘Data Vibes’ www.mcgill.ca/oss/article/... by @jonathanjarry.bsky.social "It’s an exercise in hypocrisy as RFK Jr’s commission seeks to protect kids while his boss endangers their health." "...a stubborn refusal to confront known answers to important problems."

Misinformation, knowledge & COVID vaccine acceptance: bmcpublichealth.biomedcentral.com/articles/10.... "...89.7% encountered rumors regarding unverified adverse effects" Misinformation has a negative impact on vaccine uptake "and could be the most significant contributor to vaccine hesitancy..."

Researchers urge caution when using ChatGPT to self-diagnose illnesses www.ctvnews.ca/health/artic... "Only 31 per cent of ChatGPT’s responses were deemed entirely correct, and just 34 per cent were considered clear."

School of Public Health Graduates Hear Blunt Critiques of Trump www.harvardmagazine.com/2025/05/harv... via @hsph.harvard.edu @celinegounder.com: "The current administration is waging a war on science.” "Nowhere is that war clearer than in the realm of vaccines..."

Removing fluoride = "an increase in tooth decay of 7.5% points & cost approximately $9.8 billion over 5 years." But, alas, this is now all about politics & spin. The data won't help. Projected Outcomes of Removing Fluoride From US Public Water Systems jamanetwork.com/journals/jam...

The Dizzying Rise of MAHA Warrior Calley Means, RFK Jr.’s Right-Hand Man www.vanityfair.com/news/story/c... by @katherineeban.bsky.social "Calley Means is not a whistleblower. He is an opportunist, peddling junk science to make millions." MAHA = “...a slogan and a certain amount of grift.”

I can't believe "detox" is still a thing. My take... 👇

Yep. Substance-free slogans that will have no real impact on health. The hidden elitism of RFK's MAHA movement is making America more unhealthy www.salon.com/2025/05/27/t... "He's taking away health care, with a special emphasis on limiting access for women, minorities, children, & working people"

New research highlights spite as a motivator of conspiracy theory beliefs www.psypost.org/new-research... via @psypost.bsky.social "...feelings of competitive disadvantage can trigger a spiteful mindset, which in turn makes people more receptive to conspiracy theories..."

WTF? Sigh. We all know MAHA report full on nonsensical BS, but it was also full of fake references. I suppose the authors don't realize that real researchers check this stuff. 'Make America Healthy Again' report updated to remove nonexistent studies f24.my/BCsq.X

Sum: NO! Detox = wellness woo marketing BS. Is it true that … detox diets flush toxins out of your body? www.theguardian.com/lifeandstyle...

Seriously, the selling of supplements a MASSIVE red flag for GRIFTER. 🚩🚩🚩🚩🚩🚩🚩🚩🚩🚩🚩🚩🚩🚩🚩🚩🚩🚩🚩🚩🚩🚩🚩🚩🚩🚩

#Move! Effectiveness of exercise for improving cognition, memory and executive function: bjsm.bmj.com/content/earl... "...strong evidence that exercise, even light intensity, benefits general cognition, memory and executive function across all populations..."

With Covid vaccine decisions, RFK Jr. unleashes an unfettered assault on public health www.statnews.com/2025/05/28/r... by @matthewherper.bsky.social "...he has repeatedly made inaccurate statements about the measles vaccine, which is among the safest and most effective medicines ever developed."

🚨Misinformation research continues to be urgent science www.science.org/doi/10.1126/... "...70% of Americans regard misinformation as a major threat..." "The overwhelming majority of research on misinformation ... has no partisan agenda & no relationship whatsoever to censorship." Hear, hear! 🙏

And the hits just keep coming. Every single day RFK Jr demonstrates why he is the worst possibe choice for his current job. Dark Age 2.0 HHS cancels nearly $600 million Moderna contract on vaccines for flu pandemics www.statnews.com/2025/05/28/m... @helenbranswell.bsky.social

How to destroy knowledge? 👇 How to create distrust & polarization? 👇 How erode beneficial biomedical research?👇 How hurt public & patients?👇 How to be just kinda evil?👇 RFK Jr. says he may bar scientists from publishing in top medical journals wapo.st/43sc0Bz

Political spin, bad science, and lies haven't changed reality. The large & robust body of evidence still shows vaccines save (millions) of lives. We can't let the darkness win.💪

Study: Relative engagement with sources of climate misinformation is growing across social media platforms www.nature.com/articles/s41... "...we observe significantly greater relative engagement with these sources compared to content from reliable sources on all platforms except Twitter."

AI + misinformation = cheap political spin A weaponized AI chatbot is flooding city councils with climate misinformation www.nationalobserver.com/2025/05/28/i... via @nationalobserver.com "...artificial intelligence 'enables the cost of misinformation to come close to zero.'"

“ACOG is concerned about and extremely disappointed by the announcement that HHS will no longer recommend COVID-19 vaccination during pregnancy." Reality: evidence shows COVID vaccination safe and protects mother & baby. cc @cmadocs.bsky.social @drjengunter.bsky.social @drandrealove.bsky.social

Congrats to the amazing "Harder Better Faster Stronger" team! 🙏 Two LEO Awards nominations! Proud of our work on this timely show. The "manosphere" is having a huge (and harmful) impact. Watch on @cbcgem.bsky.social now gem.cbc.ca/harder-bette...

"These deaths highlight the continued consequences of US health system inadequacies, economic inequality, and social & political determinants of health." 👆 None of this – zero – will be addressed by MAHA BS. US deaths compared with other countries jamanetwork.com/journals/jam...