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 football player in white is tackled by two players in blue uniforms during a game, with a crowd watching in the background.

The NFL and Brain Injury

Last week I wrote about traumatic brain injury (TBI). By coincidence, the BMJ just published a study looking at a type of TBI called chronic traumatic encephalopathy (CTE), which is caused by repeated head injuries over a long period of time, even those not severe enough to cause an acute TBI. They were looking specifically at former NFL football players, because that...

/ August 26, 2026
Diagram showing coup and contrecoup brain injuries: the left shows a head hitting a surface with primary impact to the front brain; the right shows secondary impact at the back of the brain, both highlighted in red.

Preventing Traumatic Brain Injury

Traumatic brain injury (TBI) affects tens of millions of people worldwide each year with about 5 million deaths. For those who survive there is often permanent neurological impairment. TBI is therefore a serious public health issue that needs to be addressed. The largest international study of TBI was recently published in Nature Medicine, providing some insight into how best to approach the...

/ August 19, 2026
A man in a suit holds a large chart with vaccine recommendations while sitting at a desk. Behind him stands another man in a suit. US flags and official emblems are visible in the background.

Trump’s Frontal Assault on Vaccines

On Monday, Donald Trump signed an executive order full of antivax goals. It's a frontal assault on vaccines.

/ August 12, 2026

AI And Pseudoscience

We have to deal with artificial intelligence (AI). We cannot simply dismiss it or criticize it, and we certainly shouldn’t just embrace it without significant skepticism. But I feel it is necessary for any science communicator to do their best to become AI-literate – even if AI itself is not your field of communication. AI now touches everything. For example, increasingly people...

/ August 5, 2026
Colorful boxes of Lemon Twist and Melon Twist e-liquid are displayed on a store shelf. Warning labels and flavors are visible. Other vape products are partially visible on either side.

Negative Health Effects of Vaping

When vaping was first introduced it was marketed mainly as a safer alternative to smoking and as a potential smoking cessation method. But increasingly people who have never smoked are vaping, and now the concern is that vaping is more of a pathway into smoking than one out of it. According to the CDC, about 30% of all adults who vape have...

/ July 15, 2026
A woman holds a letterboard while a boy in a striped hoodie points at it with a pencil. They sit in a peach-colored room, engaged in a communication or learning activity.

NYT Article on Rapid Prompting Method

This is one of those stories that will not go away, and a recent NYT article is fresh evidence of that. The title is: An Autism Breakthrough, or an Illusion? The Fight Over Assisted Spelling.” I always approach such articles cautiously, bracing myself for the cringing experience of reading a non-expert butcher such topics in depressingly predictable ways. This article was not...

/ July 8, 2026
A blue graphic features a mortar and pestle with grapes inside, surrounded by digital and scientific icons. The World Health Organization logo appears at the bottom right.

WHO And The Death of Evidence-Based Medicine

I have long been critical of the World Health Organization’s promotion of dubious treatment methods under the banner of “traditional medicine”. It now has a global strategy to promote what is calls “traditional, complementary and integrative medicine” (TCIM). In my opinion (shared by at least some others) the document is a master class in how to promote medical pseudoscience with the language...

/ July 1, 2026
A woman uses a health monitoring app on her smartphone, holding her finger over the camera as the app measures biometrics. Next to her is a screenshot showing the app’s dashboard with symptom forecasts and recent health trends.

Using Phone Apps to Track Symptoms

It is easy to forget how much of an impact the smartphone has had on our daily lives and our society. About 91% of Americans own a smartphone, which means most of us are walking around with a device in our pockets that is a computer, communicator, camera, GPS locator and has access to virtually the world’s store of human knowledge. The...

/ June 24, 2026
Stem cells

Stem Cell Therapy for Autism

If you are a parent of a young child with autism (especially level 2 or 3, requiring significant support), the promise of a cure or even an effective treatment is irresistible. This is exactly why there needs to be science-based regulatory standards – to protect vulnerable patients and their loved-ones. RFK Jr., however, wants to weaken these protections – even removing from...

/ June 17, 2026

The Baloney Protection Act

We have had to endure a great deal of interference from government in the conduct of institutions that should be governed by science and evidence. I’m sorry to report – here is one more. Senators Mike Lee (R-UT) and Tommy Tuberville (R- AL) have recently introduced a bill that would limit the FDA’s ability to regulate the blatant pseudoscience of homeopathy. This...

/ June 10, 2026