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.

Author

  • 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 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
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