Dieting and the search for the perfect body: Where physiology and culture collide

Modern society breeds a search for the perfect body. Today's aesthetic ideal is extremely thin, and now, superimposed on this, is the need to be physically fit. People seek the ideal, not only because of expected health benefits, but because of what the ideal symbolizes in our culture (self-control, success, acceptance). Two assumptions are widespread with regard to body weight and shape. One is that the body is infinitely malleable, and that with the right combination of diet and exercise, every person can reach the ideal. The second is that vast rewards await the person who attains the ideal. Research has shown that biological variables, particularly genetics, are influential in the regulation of body weight and shape. Hence, there are limits to how much a person can change. This places culture in conflict with physiology. In addition, the rewards of being attractive are less than most would expect. There are serious consequences of seeking the ideal and falling short, some psychological and others physiological (e.g., increased health risk for weight cycling). Clinical and research efforts are necessary to help individuals establish reasonable weight and shape goals, and to educate the public accordingly.