Nova: Season 47, Episode 6

47 - 6: The Truth About Fat

Do we control our fat, or does it control us? For generations, overweight individuals have been stigmatized and cast as lazy. But scientists are coming to understand fat as a fascinating and dynamic organ—one whose size has more to do with biological processes than personal choices. Through real-life stories of hunter-gatherers, sumo wrestlers, and supermodels, NOVA explores the complex functions of fat and the role it plays in controlling hunger, hormones, and even reproduction.