As you may have heard, sex doesn't burn nearly as many calories as you might have been led to believe. But this is far from the only finding in obesity research that wilts under intense scrutiny, as the rest of this paper in the New England Journal of Medicine revealed. Each piece of received wisdom about weight-loss and dieting the study took on (eat fruits and vegetables! eat breakfast! etc.)—was found wanting. Conclusions: "False and scientifically unsupported beliefs about obesity are pervasive in both scientific literature and the popular press." What we think of as hard science can, it turns out, be pretty soft.
One example as [...]