Skepticism about Cancer Screening: An Interview with Dr. H. Gilbert Welch
Dr. H. Gilbert Welch is an American physician and cancer screening researcher. As a former professor at the Dartmouth Institute for Health Policy and Clinical Practice, he has published many peer-reviewed papers about the harms of early detection and specifically of cancer screening—the systematic search for cancer before it causes symptoms. Welch is also a …
The Not So Divine Acts of Medium ‘John of God’
John of God (João de Deus, real name João Teixeira de Faria) is a well-known Brazilian medium who claims to have healed several people through his spiritual surgeries. According to one John of God website, he is “arguably the most powerful unconscious medium alive today and possibly the best-known healer of the past 2000 years.” …
Screening for Prostate and Breast Cancer: It’s More Complex Than You May Think
“Pink October” and “Blue November” are campaigns to promote awareness for breast and prostate cancer, respectively. In Brazil, as well as in other countries, the population is encouraged to do tests such as the prostate-specific antigen (PSA) for prostate cancer and mammography for breast cancer. The main idea is screening: to perform tests in …
Reflections on Shermer’s Heavens on Earth
Michael Shermer’s book, Heavens on Earth, details how the awareness of our mortality and failings has led to beliefs in heaven and hell, in afterlives and resurrections both spiritual and physical, in utopias and dystopias, in progress and decline, and in the perfectibility and fallibility of human nature.
Reflections on Krauss’s The Greatest Story Ever Told–So Far
Lawrence Krauss’ The Greatest Story Ever Told—So Far was published by Atria Books in the beginning of March. Learn more about it in this article.
To Be More Skeptical about Anti- Vaccination and Vitamin Supplements: An Interview with Paul Offit
I think once you scare people, it’s hard to un-scare them; once you open the Pandora’s Box, it’s hard to close it.
Reflections on Sean Carroll’s The Big Picture
Carroll is a poetic naturalist, and he does a great job throughout the book of differentiating fundamental from emergent phenomena, highlighting that both are real.
The Discovery of Gravitational Waves: An Interview with Lawrence Krauss
Gravitational waves were the last aspect of general relativity that needed to be tested directly; it’s completely right.
Fascinating Psychology Experiments
The question of whether or not psychology is a science is not new. However, when science has been applied to the study of cognition and behavior, scientists have uncovered interesting phenomena through very clever experiments.
To Better Understand Science and the Universe: An Interview with Lawrence Krauss
Lawrence Krauss is a renowned theoretical physicist at Arizona State University. He was one of the first to suggest that most of the energy of the universe resides in empty space, an idea that today is called dark energy.
Myths about Nutrition
As a PhD student in medical sciences, people often ask me questions about diet and nutrition. The problem is that several bogus claims have spread and are widely believed.
To Better Understand Evolution: An Interview with Jerry Coyne
Jerry Coyne is an evolutionary biologist at the University of Chicago and an important popularizer of evolution and science in general.