" The deposition of fat in men and women is distinctly different. Men tend to store fat above the waist—hence the beer belly—and women below it. Women put on fat in puberty, at least in the breasts and hips, and men lose it. Women gain weight (particularly fat) in pregnancy and after menopause. This suggests that sex hormones are involved, as much as or more than eating behavior and physical activity. “The energy conception can certainly not be applied to this realm,” as the German clinician Erich Grafe observed in 1933 about this anatomical distribution of fat deposits and how it differs by sex. "

― Gary Taubes , Good Calories, Bad Calories: Challenging the Conventional Wisdom on Diet, Weight Control, and Disease