The number of calories you guys consume as a part of your diet, if you're the average person, is much higher than used to be the case and that has very interesting biological implications that we'll discuss.

从作为饮食一部分的饮料中摄取的热量,就普通人的情况而言,和过去相比要高得多,这包含了一层有趣的生物学含义

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选