Recently, there has been a large uptick in interest about the so-called placebo effect, mostly from the complementary and alternative junk medicine (CAM) crowd. Evidently, they feel that being equivalent to doing nothing is good enough to be real. A recent article in the Wall Street Journal, Why Placebos Work Wonders, is indicative of this recent pro-placebo point-of-view. I’ve got other bones to pick with WSJ on global warming, but I’ll save that for another day.
What exactly is the placebo effect? The definition is often misused, implying some beneficial effect from a sugar pill or sham treatment. But in medicine, a placebo is actually a failure. If a new pharmaceutical, procedure or medical device shows no difference in efficacy compared to a placebo, then it is rejected. But the CAM-pushing herd thinks that proves its a success when one of its potions and lotions is equivalent to a placebo. What? A failure of a modality in evidence-based medicine is somehow converted into a successful product in the CAM world? Continue reading “How the placebo effect proves nothing and means nothing”