That efficient metabolism that banks calories is highly efficient, highly important, highly adaptable, under circumstances where food is scarce, but not efficient and not adaptive under modern food conditions in the developed world.

能高效存储能量的代谢系统,在食品短缺的情况下,非常重要,有着较强的适应能力,但却不能适应,现代发达国家的食品环境

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

We can think about this in an evolutionary way, as I've alluded to a lot, but if you think about it from a completely Darwinian point of view, and you think about these food conditions where food would be scarce in ancient times.

我们可以从生物演化的角度来看这个问题,我已经提到过很多了,但是如果你完全从达尔文学说的角度思考,从食品条件想想,在古代,哪里可能出现食物短缺

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 these parts of the world are shrinking in the number; but let's say you lived in Ethiopia or Somalia, or places where food really is scarce way too much of the time, then having this particular biological drive, having a brain that wants you to seek out these foods would be highly adaptive.

现在这些地区的数量正在减少,但如果你生活在埃塞俄比亚或是索马里,或是当前食品十分短缺的地区,那么拥有这种生物驱动力,拥有不断驱使你去寻找食物的大脑,会让你有极强的适应能力

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选