American Council on Science and Health. Science and consumer advocates since 1978. We separate facts from myths and debunk junk science.

New York, NY
Joined September 2010
"Self-driving cars promise fewer accidents, fewer injuries, and potentially thousands of lives saved. That sounds like good news for everyone—except perhaps the personal-injury lawyers whose livelihoods depend on crashes and harm." via @ACSHorg realclearscience.com/2026/10…
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Yet the government dutifully collects unused opioids from people who haven’t the slightest clue that they’ll probably not get new ones when they really need them. It’s like giving back any unused portion of your paycheck.
Pain: 'Malignant as cancer'—and an overlooked cause of suicide by @LynnRWebsterMD
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Fascinating discussion on lots of controversial topics. Would love to hear your thoughts. Have a listen!👇🏽
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From the current politics of data centers to the plausibility of AI's worst-case scenarios, join the conversation with @JonEntine, @camjenglish, and @DrLizaMD xitter.cf/i/spaces/1qKVmyLZkYWxB…

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Female researchers—sorry, "menstruating personnel"—banned from curation rooms at San José State. Project team told by the Smithsonian certain artifacts couldn't be "handled by females." Today at 5: Anthropologist @eweissunburied on why the wokies endorse some patriarchy.
"A dangerous mixture of good intentions and harmful ideology" is burying America's past, says anthropologist Elizabeth Weiss @eweissunburied. Museums are now presenting native American creation myths as history and reburying 12,000-year-old human skeletons to satisfy activists. Meanwhile, critical research on the first people in the American Southwest has largely ground to a halt courtesy of progressive politics. Tomorrow Dr. Weiss joins @JonEntine, @DrLizaMD and me to make her case. xitter.cf/i/spaces/1YxNrbYvaVzxw…

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"A dangerous mixture of good intentions and harmful ideology" is burying America's past, says anthropologist Elizabeth Weiss @eweissunburied. Museums are now presenting native American creation myths as history and reburying 12,000-year-old human skeletons to satisfy activists. Meanwhile, critical research on the first people in the American Southwest has largely ground to a halt courtesy of progressive politics. Tomorrow Dr. Weiss joins @JonEntine, @DrLizaMD and me to make her case. xitter.cf/i/spaces/1YxNrbYvaVzxw…

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ACSH retweeted
Supplements are a waste of money for most people. Their marketing often collapses the moment you apply basic chemistry and biology. You’re frequently just buying a sugar pill with a backstory. @adolaskie walks through four clear examples:
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I don't answer our X critics except to collect their tweets so our team can make funny videos. The idea that Heritage tells us what to say is adorable, though.
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Right or wrong, #COVID spurred an erosion of trust in medical officials, and Anthony Fauci bore the brunt of that distrust. Join @JonEntine, @DrLizaMD, and @camjenglish to unpack what we learned (and didn't) from Fauci's personal #diaries. xitter.cf/i/spaces/1nxnRRwqwBLxO…

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Replying to @WillieNelson
Let's protect our farmers and food security from scientific misinformation. Here are some glyphosate facts.
Replying to @Rep_Stansbury
Hi Congresswoman, Glyphosate doesn't cause cancer. It kills weeds really well, though. It's a critical agricultural tool that poses little risk to public health or the environment. We made a video you should check out. Call us with questions. Our experts are happy to chat.
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Not only that - I even spoke to the authors who couldn’t defend the paper in person!
Replying to @drugmonkeyblog
This is the epidemiological garbage RFK, Jr. cited during his senate confirmation hearing re: fluoride and IQ. It's my opion that your peer-review process went off the rails here.
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The substitution of pseudouridine for uridine changes the mRNA a bit, but it does not impact the built-in cleavage mechanism facilitated by the 2’-hydroxyl group that nature intentionally put there.
Replying to @ACSHorg
The vaccines use modified mRNA (e.g. pseudouridine) to help it last long enough to do its job and reduce unwanted immune reactions. But that critical chemical vulnerability remains, so the mRNA still gets cleared quickly after it’s translated into protein.
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The concern about pesticides—on conventional or organic produce—is overblown. @DrLizaMD explains why on our upcoming episode responding to @foundmyfitness. Here's a preview:
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Scrolling through TikTok or Instagram, you're force fed AI-generated videos that claim: ❌Fruits and vegetables are “full of toxins.” ❌Farmers are “poisoning” communities. 💸AND OF COURSE:💸 Try my “product” to protect you and your family. More in the 🧵below.
Can you trust that slick health video in your feed? Maybe not. AI is flooding YouTube, TikTok & Instagram with fake “doctors” and wellness gurus pushing dangerous nonsense. My latest for @agripulse. 🧵
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ACSH retweeted
Major @TheLancet review on mRNA COVID vaccines tackles one of the most common lingering concerns: Does the mRNA persist indefinitely in the body or integrate into our DNA? Our Dr. @JoshBloomACSH explains the science. 🧵
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Legendary chemist Dr. @JoshBloomACSH breaks down the most persistent myth about COVID vaccines.🧵
Major @TheLancet review on mRNA COVID vaccines tackles one of the most common lingering concerns: Does the mRNA persist indefinitely in the body or integrate into our DNA? Our Dr. @JoshBloomACSH explains the science. 🧵
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Well, great! The anon with a gator avatar doesn't think I'm handsome. Time to take the fireworks back, because the holiday is ruined!
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Replying to @LocasaleLab
Dr. Kristin Collier (@HSRdirector) gave the best possible answer when @DrLizaMD and I asked her about rebuilding trust: Tell the truth; apologize when you're wrong. Simple, not easy.
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There is a huge story here. It just hasn’t come out yet. But it will.
"We never used to see people in the ER for marijuana use, ever." — @DrLizaMD. What changed? Today's cannabis is way more potent than the stuff your dad smoked at Woodstock. The myth of harmless marijuana for @GeneticLiteracy's Facts & Fallacies podcast. Full episode below.⬇️
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