A review of Are Electromagnetic Fields Making Me Ill? How Electricity and Magnetism Affect Our Health, by Bradley J. Roth

Bradley Roth is a retired physicist and acknowledged expert in electromagnetism who co- authored the textbook Intermediate Physics for Medicine and Biology. In this new book, Are Electromagnetic Fields Making Me Ill?, he shares his knowledge and understanding with the general public. The book asks a number of questions about electricity, magnetism, and health claims, starting with unchanging

Observational Studies and Experimental Studies

[Este artículo está disponible en español. La traducción al español apareció por primera vez en la revista Pensar.] Research studies can be divided into two types: observational studies and experimental studies. Observational studies simply observe the effect of a variable in a population. They can assess the strength of a relationship, for instance between dietary

Estudios observacionales y estudios experimentales

[This article is also available in English. Thanks to Pensar for the Spanish translation.] Los estudios de investigación médica se pueden dividir en dos tipos: observacionales y experimentales. Los estudios observacionales simplemente observan el efecto de una variable en una población. Pueden evaluar la fuerza de una relación, por ejemplo, entre factores dietéticos y enfermedades.

Living with Uncertainty

Uncertainty is uncomfortable. It is only natural to want certainty. It is more comfortable to be certain and wrong than to be uncertain. Like anyone else, I would like to be comfortable, but I think truth matters. I’d rather be uncertain than wrong; wouldn’t you?  As Voltaire said, “Uncertainty is an uncomfortable position. But certainty

Illness, Healing, and Other Terms That Can Be Confusing

Disease vs. Illness The words “disease” and “illness” are often used interchangeably, but their meanings are very different. Diseases are biomedical entities where there is impairment of the normal functioning of the body. Illness refers to the way a patient experiences a sickness. There can be disease without illness and illness without disease. Diseases may

¡No, no, no, no! ¡Los testimonios no son evidencia!

[This article is also available in English. Thanks to Pensar for the Spanish translation.] Estamos programados para responder a testimonios. Échale la culpa a la evolución. Durante la mayor parte de la historia de la humanidad, solo teníamos dos formas de aprender sobre el mundo: nuestras propias observaciones y lo que otras personas nos contaban

No, No, No, NO! Testimonials Are Not Evidence!

[Este artículo está disponible en español. La traducción al español apareció por primera vez en la revista Pensar.] We are programmed to respond to testimonials. Blame evolution. For most of human history, we had only two ways to learn about the world: our own observations, and what other people told us about their experiences. Gathering

Why We Need Science

Most patients, and even many medical doctors and scientists, have not grasped how important it is to use rigorous science to evaluate claims for medical treatments. All too often, people decide to try a treatment that is irrational, that hasn’t been tested, or that has been tested and shown not to work. Why do they

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

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