Do we control our fat, or does it control us? 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, explore the complex functions of fat and the role it plays in controlling hunger, hormones, and even reproduction.

Originally released by PBS, 2020. Streaming video file encoded with permission for digital streaming by Infobase on April 09, 2020.