是我們控制著自己的脂肪，還是脂肪在控制我們？科學家開始把脂肪視作一個既神奇又有多功能的器官，脂肪的大小主要與生物過程有關，個人選擇其實影響不大。這一集，我們會透過狩獵採集者、相撲選手和超級模特兒的真實故事，發掘脂肪的複雜功能，它又是如何影響我們的食慾、荷爾蒙，甚至生殖能力呢？

The Truth About Fat
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, NOVA explores the complex functions of fat and role it plays in controlling hunger, hormones, and even reproduction.