All posts by Steven Novella

Founder and currently Executive Editor of Science-Based Medicine Steven Novella, MD is an academic clinical neurologist at the Yale University School of Medicine. He is also the host and producer of the popular weekly science podcast, The Skeptics’ Guide to the Universe, and the author of the NeuroLogicaBlog, a daily blog that covers news and issues in neuroscience, but also general science, scientific skepticism, philosophy of science, critical thinking, and the intersection of science with the media and society. Dr. Novella also has produced two courses with The Great Courses, and published a book on critical thinking - also called The Skeptics Guide to the Universe.

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  • Founder and currently Executive Editor of Science-Based Medicine Steven Novella, MD is an academic clinical neurologist at the Yale University School of Medicine. He is also the host and producer of the popular weekly science podcast, The Skeptics’ Guide to the Universe, and the author of the NeuroLogicaBlog, a daily blog that covers news and issues in neuroscience, but also general science, scientific skepticism, philosophy of science, critical thinking, and the intersection of science with the media and society. Dr. Novella also has produced two courses with The Great Courses, and published a book on critical thinking - also called The Skeptics Guide to the Universe.

Former President Donald Trump speaks at a podium with officials standing behind him during a televised press conference. News ticker mentions a potential Tylenol-autism link and displays the time as 2:49 PM.

That Trump, RFK, Oz Presser

Yes, we have to talk about that press conference with Trump, RFK Jr and Dr. Oz., which some are characterizing as the absolutely worst firehose of medical misinformation coming from the White House in American history. I think that is fair. This was the presser we knew was coming, and many of us were dreading. It was worse than I anticipated. I wrote a...

/ September 24, 2025
A stained cross-section of a brain shows labeled anatomical regions, including "CX" and "CC," with dark and light regions indicating different tissue densities. A scale bar at the bottom right reads 0.5 mm.

Stem Cell Stroke Therapy

We have written quite a bit about fraudulent stem cell clinics. They have followed a typical pattern of overhyping new potential therapies, with some clinics going as far as selling fake stem cell treatments. Stem cells were a likely target – they sound extremely advanced, their potential is easy to understand, and you can use them to justify extreme claims of healing....

/ September 17, 2025
An open box of acetaminophen 500 mg tablets with two blister packs, each containing white oval pills. The box is labeled "24 tablets / oral use" and "extra strength" on a light blue background.

Tylenol and Autism

Earlier this year, HHS secretary RFK Jr. predicted that, “By September, we will know what has caused the autism epidemic and we’ll be able to eliminate those exposures.” Scientists have been researching autism for decades, including what factors are driving changes in diagnostic patterns. Promising such a major breakthrough in just six months is beyond ridiculous, and strongly implies that RFK Jr....

/ September 10, 2025
Illustration of a shark behind a laptop displaying a bar chart, a clipboard with a medical symbol, a pill bottle, and scattered pills, symbolizing threats or dangers in healthcare or medicine.

The Problem with Predatory Journals

The World Wide Web has proven to be a transformative communication technology (we are using it right now). At the same time there have been some rather negative unforeseen consequences. Significantly lowering the threshold for establishing a communications outlet has democratized content creation and allows users unprecedented access to information from around the world. But it has also lowered the threshold for...

/ September 3, 2025
Two surgeons in blue scrubs and masks perform a surgical procedure, focusing intently on the operation site, with medical instruments and equipment visible on the table.

First Pig Lung to Human Transplant

In the midst of all the controversy surrounding the science of healthcare, certain technologies continue to progress in the background, with the promise of transforming the practice of medicine. One of them is the development of genetically modified animals as a source for organ transplants. I most recently wrote about this earlier this year, specifically about an experiment to transplant a pig...

/ August 27, 2025
Christian Elliot and viral disinformation

Health Narratives on Social Media

Engaging on social media about health issues can be daunting. I know this is not news, but it is important to understand what is happening phenomenologically. I also think it’s a microcosm of what’s happening to our society in general because of social media – we no longer have a shared fact-based reality as people increasingly live in different universes of information....

/ August 20, 2025

Lithium and Alzheimer’s Disease

This is an interesting story, which has been all over the news so worthy of covering here. Alzheimer’s disease (AD), the major cause of dementia in humans, is a very complex disease. We have been studying it for decades, revealing numerous clues as to what kicks it off, what causes it to progress, and how to potentially treat it. This has lead...

/ August 13, 2025
RFK Jr testifies before Senate HELP Committee May 14 2025

HHS To Cut Funding for Vaccine Research

I get it. I am as tired of writing about RFK Jr.’s dismantling of the evidence-based federal medical infrastructure as you are of reading about it. I have tried to focus on anything else, as you can see from my recent articles here. There is still a lot of bad medical science and misinformation out there that needs dealing with. But I...

/ August 6, 2025
A close-up of a box labeled "Statin Tablets 40 mg" with a blister pack of round pink tablets, a stethoscope, and part of a prescription pad in the background.

Review Recommends High Dose Statins

The exact role of different types of dietary fat and the best approach to prevention in cardiovascular disease has been somewhat controversial. However, the level of controversy among experts is much less than that being generated in the public by outliers and contrarians. Since cardiovascular disease remains a major source of morbidity and mortality, it’s important for the public to be kept...

/ July 30, 2025

The Healthcare Costs of Fossil Fuels

While the debate continues about the true impact of burning fossil fuels on the climate and what the optimal policy response should be, we need to make sure we do not neglect another aspect of fossil fuel use – air pollution and the effect it has on our health. There is a growing body of research showing a significant negative impact with...

/ July 23, 2025