The Incorrigible Dr. Oz

Dr. Mehmet Oz, the cardiothoracic surgeon who became a media star thanks to Oprah, has been widely criticized by physicians and others for giving non-scientific medical advice. The James Randi Educational Foundation dishonored him with three Pigasus awards, more than any other recipient. A study in the British Medical Journal found that evidence only supported

Why Physical Activity Does Little to Control Weight

There are things we know we don’t know and things we know we know; but sometimes the things we know we know aren’t so. An article by Herman Pontzer in the February 2017 issue of Scientific American, “The Exercise Paradox,” describes new research findings that challenge our conventional wisdom about diet, exercise, and weight loss.

Hazards of Herbal Medicine: Lessons Learned from Aristolochia

This “Brief History of Medicine” has been circulating on the Internet: 2000 B.C. — Here, eat this root. 1000 A.D. — That herb is heathen. Here, say this prayer. 1850 A.D. — That prayer is superstition. Here, drink this potion. 1940 A.D. — That potion is snake oil. Here, swallow this pill. 1985 A.D. —