If you look at increasing weight as you go from left to right on this axis, lean people, overweight people, and obese people, the risk goes way up for death from cardiovascular diseases.

从X轴左边到右边,随着体重不断上升,精瘦的,超重的,以及肥胖人群,心血管疾病的致死风险也随之增加

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Now, people are studying obese subjects because there're weight loss programs, like the one we had, and the subjects are available.

现在人们开始以肥胖者为实验对象,因为有许多减肥的项目,肥胖的实验对象是较容易找到的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选