Don’t Believe What You Think

A new book by Edzard Ernst provides a concise course in critical thinking as well as a wealth of good science-based information to counter the widespread misinformation about SCAM. Edzard Ernst was once a practitioner of alternative medicine. As the world’s first professor of complementary medicine (at the University of Exeter, UK) he led a

Pitfalls in Research: Why Studies Are More Often Wrong than Right

Here is a course guide to episode 9, “Pitfalls of Research”, of my YouTube lecture series on science-based medicine. Alternative medicine relies heavily on anecdotal evidence and personal experience, but it knows it won’t convince mainstream science unless it can provide scientific validation. It is quick to crow about positive results from scientific studies, often

In Praise of Uncertainty

There is an old joke about a patient who had high praise for her new doctor. She had had headaches for years, and no one had ever been able to explain why. The cause remained uncertain. But the uncertainty ended when her wonderful new doctor promptly diagnosed her with cephalalgia. The joke is that cephalalgia

Why ‘Trying It For Yourself’ Is A Bad Idea

When I write about a treatment that has been inadequately tested (or that has never been tested or has been tested and shown not to work), someone always asks if I have tried it myself. Apparently, they believe it really works, and if only I would try it for myself, I would believe too. If it worked

Professor Gives Grades to Alternative Medicine

Edzard Ernst assigns a grade to 150 alternative medicine modalities, evaluating plausibility, efficacy, safety, cost, and risk/benefit balance. A very useful reference. Edzard Ernst has written another book, and it’s a real tour de force: Alternative Medicine: A Critical Assessment of 150 Modalities. He probably knows more about alternative medicine than anyone else alive, and he

I Was Wrong (And I Bet You Were Too)

For me, one of the great pleasures of skepticism is finding out I was wrong about something. Rather than feeling guilty about my error, I feel proud that I have learned something and have a better understanding of reality. When skeptics encounter a questionable claim, they do some fact-checking. But what if they don’t realize

The Scientific Attitude, Not the Scientific Method, Is the Key

A philosopher of science argues that science is not characterized by a specific scientific method but by the scientific attitude. Scientists value empirical evidence and follow the evidence wherever it leads. They are open to changing their mind rather than stubbornly clinging to an ideological belief system. Science is under attack. The evidence for global

Estaba equivocada (y apuesto a que tú también)

Para mí, uno de los grandes placeres del escepticismo es descubrir que me equivoqué en algo. Más que sentirme culpable por mi error, me siento orgullosa por haber aprendido algo y tener una mejor comprensión de la realidad. Cuando los escépticos encuentran una afirmación cuestionable, hacen algo para chequear los hechos. Pero ¿qué pasa si

Pseudoscience in Child and Adolescent Psychotherapy

This new book addresses the neglected field of research on child and adolescent psychotherapy and does an excellent job of distinguishing treatments that have been proven to work from treatments that are based on pseudoscience. Pseudoscience in Child and Adolescent Psychotherapy: a Skeptical Field Guide is a new book with multiple authors, edited by Stephen

Great Courses: Skeptic’s Guide to Health, Medicine, and the Media

The Great Courses offers continuing education for adults in a wide variety of subjects. They search out the best college professors and have put together over 500 expertly-produced video courses. You can buy them individually or subscribe to The Great Courses Plus, which gives you unlimited access to all their courses. I am a long-time customer,

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