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.

A shadowy figure manipulates strings connected to scientific symbols while anxious people wearing tin foil hats look on, surrounded by skeptical onlookers with smartphones.

Trust Me-I’m a Doctor

Trust is a fragile yet critical resource for any institution. At the end of the day, civilization is mostly built on a handshake and a mutual agreement to follow the rules. This includes trust that designated experts have the expertise they claim, are competent, and are acting appropriately in the interest of others, rather than exploiting their position for self-dealing. A critical...

/ April 30, 2025
A vintage illustration shows two frogs in a lab; one reads a book and holds a flask, while the other uses a mortar and pestle. Text reads "Pond's Extract: The Peoples Remedy." Lab equipment and bottles are in the background.

Self-Treating with Serious Drugs on the Rise

One of the greatest innovations benefiting public health was regulation. In the pre-FDA “patent medicine” days, there were countless products on the market that ranged from useless to directly harmful. This was a time when you could sell radioactive tonics, cocaine-laced elixirs, and products containing poisons, like turpentine. The sellers of these products made many unsupported claims and preyed disproportionately on the...

/ April 23, 2025
A dense, tangled network of colorful, glowing lines on a black background represents brain neurons, with vibrant hues of blue, green, pink, yellow, and red intertwining throughout the image.

Mapping the Brain

I think it’s important to recognize not only how fake science can degrade medicine and exploit health care consumers, but also how real science can benefit medicine and consumers. It’s also important to separate hype from reality, because there often is science-based snake oil, meaning that there are fake treatments based on the hype of real science. We are near the beginning...

/ April 16, 2025
Illustration of a smartphone screen against a yellow and blue background. The yellow side displays words like "fake," "minimize," "chaos," while the blue side shows "verified," "fix," "trust," and "reliable.

The Misinformation Wars

The core mission of SBM comes down to a few things – examining the complex relationship between scientific evidence and healthcare, exploring issues of how optimally to regulate health care and health products, and fighting misinformation. Over the years I think we have made some solid strides on the first category. The medical infrastructure has been trending increasing towards higher standards of...

/ April 9, 2025
AI humanoid head connected to a set of computer monitors displaying medical images, likely MRI scans. The setup suggests technology and artificial intelligence in medical imaging analysis.

Will AI Save Medicine

Modern medicine is facing many challenges. As the science of medicine advances, it gets harder and harder. We have, in a way, picked all the low hanging fruit. People are living longer, and their medical conditions are getting more challenging to understand and to treat. In order to continue making medical progress we need more advanced technology. This technology – like stem...

/ April 2, 2025
A man in a suit, identified as Mr. Kennedy, gestures while speaking at a microphone during a formal meeting or hearing. He has gray hair and is sitting at a table with name placard, papers, a coffee cup, and water bottles. People are visible in the background.

David Geier Hired to Study Vaccines and Autism

If you are already tired of hearing about RFK Jr. being the Secretary of Health and Human Services (HHS), buckle in. I get it – it can be exhausting. Don’t we already know everything we need to about what a medical crank he is? While SBM will not neglect the many topics that we cover, we certainly consider it a high priority...

/ March 26, 2025
A woman in a red outfit speaks into a microphone with the text "DON'T EAT IT." A large text above reads "No More Peanut Butter ✘." The video appears on a TikTok interface with engagement icons on the right side.

On TikTok, Everything Is a Poison or Superfood

We have to face the fact that social media is now the primary way that many people get their information. More than half of people in the US get their “news” from social media at least some of the time. But I don’t think asking people where they get “news” captures the full phenomenon. People who watch TikTok videos might not consider...

/ March 19, 2025
World map showing measles cases by country in 2018. Dark red indicates the highest number of cases (over 45,000), while light beige indicates the lowest (under 400). Notable high-case regions include Madagascar and Ukraine.

Vitamin A Does Not Treat or Prevent Measles

It didn’t take long for concerns about RFKs unscientific ideological approach to healthcare to manifest. We are in the middle of a measles outbreak – the exact kind of situation for which we need a strong federal response. The person in charge of that response, RFK Jr., is a notorious anti-vaccine crank who is not a scientist or healthcare expert, even though...

/ March 12, 2025
World map with countries colored in red, orange, blue, and light blue. Each color represents different data categories. The map includes all continents except Antarctica.

Looking Back 5 Year Later – Were Lockdowns Worth It?

An excellent article on the BBC gives a good overview of the continuing controversy over universal lockdowns as a pandemic mitigation strategy during COVID. We now have significant data about how various countries around the world fared compared to their mitigation strategy. Interestingly, this data is unlikely to resolve the controversy. But it can inform our decisions for the next pandemic –...

/ March 5, 2025
A child with brown hair sits cross-legged by a cozy window, reading a book. Snow falls outside. The room is warmly lit, with books, a teddy bear, and glowing string lights. A steaming mug rests nearby, creating a serene and inviting atmosphere.

Redefining Dyslexia

What, exactly, is dyslexia? What causes it, how should it be diagnosed, and stemming from that, how should it be treated? We can even ask a more fundamental question – does it actually exist as a discrete clinical entity? These questions have existed since dyslexia was first described and named in 1887, by German Opthalmologist, Rudolf Berlin. Not surprisingly, he thought the...

/ February 26, 2025