Now these changes, these human evolutionary changes, have created some very interesting metabolic things inside our bodies.

而今,这些改变,这些人类演化造成的变化,在人体内产生了一些很有意思的代谢过程

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Suppose we put somebody in a state of suspended animation, cool their body down so that the various metabolic processes come to an end.

假设我们让某人,进入假死状态，将他们的身体降温,所有的代谢过程都停止。

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In that process there is a metabolic engine at work, and some people have an efficient engine so that the calories in get banked in the fat, other people have an inefficient engine, that is the calories get wasted as body heat and things like that, and they tend not to gain weight.

这过程中人体内有个工作着的代谢引擎,有些人的代谢引擎效率很高,热量便转化为脂肪储存起来,另一些人的效率低下,能量就以体温等形式被浪费了,因此他们就不容易发胖

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选