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 colorful assortment of fresh vegetables, including carrots, cucumbers, tomatoes, bell peppers, broccoli, radishes, garlic, green beans, lettuce, kale, and spinach, arranged on a wooden surface outdoors.

MAHA Ruins Everything – Apeel Edition

About 30-40% of all food produced is wasted and not consumed. That is a stunning figure – a third of produce goes to waste. That amount of food is grown on land area the equivalent of China, uses 45 trillion gallons of water, and produces about 3% of greenhouse gas emissions. An average American household of four spends about $3 thousand a...

/ May 20, 2026

NYT Epic Fail on Acupuncture

This makes the third time in just two weeks that a major mainstream or scientific outlet published credible nonsense about acupuncture, but I had to cover it after dozens of people e-mailed me about this recent article in the New York Times Magazine. It is ostensibly about the interstitium, but pivots to using this recent discovery to retcon an alleged explanation for how...

/ May 13, 2026
Bar and line graph showing yearly reported measles cases in the US (2011–2025) and US mean and median MMR vaccination rates, with cases peaking in 2014 and 2019, and vaccination rates gradually declining.

Measles Surging As Vaccine Rates Drop

As easily predicted, declining measles vaccine rates in the US is leading directly to surging measles cases. In 2025 we saw the highest measles cases, 2288, since 1991, and in 2026 we are on track to exceed this number with 1814 confirmed cases so far (these are confirmed cases). The US is also not getting the worst of it, that would be...

/ May 6, 2026
Acupuncture for xerostomia

PNAS Publishes Rank Pseudoscience

The Proceedings of the National Academy of Sciences recently published an article on acupuncture. It's a highly credulous take that tries to convince the reader that acupuncture is more than just a highly theatrical placebo. Quackademic medicine continues apace.

/ April 29, 2026

New Review Casts Doubt On Alzheimers Drugs But Is Controversial

There's a lot less than meets the eye to a recent Cochrane review that casts doubt on the efficacy of drugs for Alzheimer's disease.

/ April 22, 2026
A doctor interacts with a futuristic digital brain image on a screen. Another monitor shows AI medical assistant data with diagnostics and x-ray images. Medical devices and a skeleton model are visible in the background.

New Study on AI Clinical Decision-Making

Large language model artificial intelligence applications (LLM AIs) seem poised to have a significant effect on the practice of medicine, both good and bad, which is why we are giving it as much attention as we are here. LLMs give impressive results when tested on medical knowledge, able to pass multiple-choice exams designed for general medical and specialty certification. In fact it...

/ April 15, 2026
A farmer in boots and a cap milks a black-and-white cow by hand outside a barn, with a dog watching and large milk cans nearby. In the background, cows graze near a red barn and a silo on a sunny day.

More On Raw Milk

HHS Secretary Robert F. Kennedy, Jr. has been pushing the narrative that raw unpasteurized milk is both safe and better for your health than pasteurized milk. As usual, he is objectively wrong.

/ April 8, 2026
Diagram showing two cell membrane biomarkers interacting with DNA probes, triggering logic-gated endocytosis for computed drug delivery. Arrows illustrate the process from biomarkers to drug entry into the cell.

Smart Drugs Are Here

There is a quiet revolution going on. While so much media attention is being spent on debating the risks vs benefits of raw milk, the latest outrages from the systematic dismantling of quality science at the CDC and other federal agencies, and by the tsunami of terrible medical science being pushed on social media, science-based medicine marches on. Public awareness of recent...

/ April 1, 2026
A butcher wearing a red shirt cuts raw meat at a market stall, surrounded by slabs of meat hanging overhead and trays of meat on the counter. The workspace is busy and filled with fresh cuts.

Zoonotic Spillover Is A Problem

Recently I gave the latest update on the origins of SARS-CoV-2 – bottom line, it was very likely a zoonotic spillover event and not a lab leak. Following that, I interviewed a researcher, Dr. Andersen, who is an expert on the origins of epidemics/pandemics and has researched this very question. He reinforced the spillover hypothesis, indicated he had considered the lab leak...

/ March 25, 2026
A detailed illustration of a human liver with multiple large, irregular yellowish masses indicating severe fatty infiltration or disease, against a plain white background.

Liver Failure From Alternative Medicines

One of the persistent themes we confront at SBM is the evolving double-standard in clinical medicine. On the one hand, in mainstream medicine there is a push for higher standards of science and evidence and more effective regulation. At the same time proponents of “alternative medicine” are constantly seeking ways to water down scientific standards and loosen regulations. This is sold to...

/ March 18, 2026