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 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
A person holds their hands hovering above another person’s body, suggesting a healing or energy therapy session, both dressed in white with a blurred outdoor background.

An Unimpressive Reiki Study

I often get e-mail suggesting topics to cover on SBM or elsewhere in my social media content. I like getting these e-mails when they are organic, coming from readers here with genuine questions about some questionable claim or practice. But often they are press contacts, by a professional promoter pushing a new study or shopping around an author or someone they represent....

/ March 11, 2026
Several men wearing face masks inspect cages filled with live bats in a market setting. Some men are photographing the scene, and the cages are stacked, appearing cramped and crowded.

Latest Science on Origins of SARS-CoV-2

Science continues to support a much higher likelihood of of a natural origin for SARS-CoV-2 than a "lab leak."

/ March 4, 2026
A person wearing protective clothing and a backpack sprayer stands in shallow water among tall grass, spraying chemicals or pesticides onto plants.

Glyphosate Remains Controversial

Evidence still supports the efficacy and general safety of glyphosate, although certain concerns are worth investigating.

/ February 25, 2026
Line graph showing increasing autism prevalence per 1,000 8-year-olds from 2000 to 2016. Non-profound autism rises from 3.9 to 14.3; profound autism rises from 2.7 to 4.6. Non-profound outpaces profound across all years.

Latest Autism Data

In April of 2025, HHS secretary RFK Jr. stated: “The autism epidemic is running rampant,” said U.S. Health and Human Services (HHS) Secretary Robert F. Kennedy, Jr. “One in 31 American children born in 2014 are disabled by autism. That’s up significantly from two years earlier and nearly five times higher than when the CDC first started running autism surveys in children...

/ February 11, 2026
A group of elderly adults exercises together outdoors in a park, following an instructor in white practicing tai chi. Some participants squat or stretch, all smiling and appearing engaged in the activity. Trees and grass are in the background.

The Data Is In – Exercise Is Good For You

Many times in my career I have sat across from a patient who expressed that they are getting serious about their health, and then rattle off a list of things that they are doing to improve their health – all mostly worthless. I do not blame them – they are victims of a self-help, supplement, and wellness industry that has completely mislead...

/ February 4, 2026
Large factory chimneys releasing thick smoke into the air, with industrial buildings and ships in the foreground under a cloudy sky, indicating heavy air pollution.

The Health Effects of Air Pollution

Air pollution remains a grave threat to human health, but MAHA is doing nothing about it.

/ January 28, 2026
The World Health Organization logo features a blue globe with a staff and snake symbol, surrounded by olive branches, next to the blue text "World Health Organization.

The World Health Organization on Traditional Medicine

The World Health Organization updated their guidelines on "traditional medicine." Unfortunately, as has been the case in the past the WHO tends to be far too credulous about unproven and disproven treatments.

/ January 21, 2026
A variety of foods shaped in a heart, divided into Protein, Dairy & Healthy Fats; Vegetables & Fruits; and Whole Grains, illustrating a balanced diet. Foods include fish, eggs, cheese, vegetables, fruits, bread, and rice.

RFK Jr. Turns the Food Pyramid on Its Head

The antivax activist who is now our Secretary of Health and Human Services, Robert F. Kennedy, Jr. has turned his attention briefly from vaccines to food, all in order to promote the consumption of more meat and dairy products. Will this "make America healthy again"? I think you know the answer.

/ January 14, 2026
A man in a suit speaks at a podium with the U.S. presidential seal, gesturing with his hands, while another man in a suit stands behind him, listening attentively.

RFK Jr. Decimates Vaccine Schedule

As we have been warning for months that he would do, HHS Secretary Robert F. Kennedy, Jr. is coming to take away your vaccines. His opening gambit is to remake our system in the image of Denmark, but he won't stop there.

/ January 7, 2026