是我们控制着自己的脂肪，还是脂肪在控制我们？科学家开始把脂肪视作一个既神奇又有多功能的器官，脂肪的大小主要与生物过程有关，个人选择其实影响不大。这一集，我们会透过狩猎采集者、相扑选手和超级模特儿的真实故事，发掘脂肪的复杂功能，它又是如何影响我们的食欲、荷尔蒙，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.