Lectures curated around PBS's Take One Step Health Campaign special Fat: What No One is Telling You, that explores the myriad psychological, physiological and environmental factors that can make it so tough to lose weight.

With 66 percent of U.S. adults either overweight or obese, our girth is a serious public health issue. Yet many of us still view being overweight as a character flaw, a lack of self-control, or even a moral crime. But does fat really equal failure? This program shares new scientific knowledge about hunger, eating, and human metabolic operation. This film also explains our psychological responses to food, and shows how external pressures (such as oversized restaurant portions and the unending barrage of food advertisement) make fighting fat so difficult, both on the personal and national levels.