You need to be able to integrate that information into a response, and that happens through these biochemical reactions.

体内的细胞要整合信息并作出反应,这个过程就通过这些生化反应来完成

耶鲁公开课 - 生物医学工程探索课程节选

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

Well that process of control to maintain a constant environment inside our body, whether it's an environment of constant mass or constant composition, or constant temperature, is called homeostasis.

这个控制过程维持着,体内环境的恒定,不论是内环境中物质的量的稳定,或者成分的稳定,或温度的稳定,这种状态叫做内稳态

耶鲁公开课 - 生物医学工程探索课程节选

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