序言与人生使命：理解生物学底层机制
Intro & Life Mission: Why Understanding Biology Changes Everything
“In every domain of life, whether or not it's food, exercise, for some people it's work or sex, if you push things to the max, you're going to feel depleted and understimulated afterwards and you need so much more energy to get the same output.”
在生活的各个领域，不管是食物、运动，还是对一些人来说的工作或性，如果你把事情推向极致，你事后就会感到被掏空、缺乏刺激，并且你需要更多的能量来达到同样的输出。
If you push things to the max, you're going to feel depleted and understimulated afterwards and you need so much more energy to get the same output.
"In every domain of life" 是地点状语，"whether or not it's food, exercise, for some people it's work or sex" 是让步状语作补充说明，"if you push things to the max" 是条件状语从句。
先看状语明确范围（生活的各个领域），再看插入语举例，接着看到条件从句 "if you push..."，最后是主句并列的两个结果：感到空虚，以及需要更多能量。
“If you overindulge in anything, you'll eventually feel exhausted and need more effort to get the same result.”
“And when you're in that dopamine-depleted state, typically what people do is they try and access things that are going to reactivate the dopamine circuitry and all it does is drive them further and further into that trough.”
当你处于那种多巴胺耗竭的状态时，人们通常的做法是试图寻找那些能重新激活多巴胺回路的事物，但这只会让他们越陷越深，跌入谷底。
“I want people to understand how incredible the human body and brain are and how even a small understanding of the underlying mechanisms about how we interact with light or temperature, exercise, thoughts, emotions, etc., how that can impact our health in really powerful ways.”
我希望人们明白，人类的身体和大脑是多么不可思议，并且，即便只是稍微了解一下我们与光线、温度、运动、思想、情绪等相互作用的底层机制，也能在很大程度上对我们的健康产生巨大影响。
“I think most everybody, I like to think, is deeply interested in how to be the best version of themselves and I think what I've done is I've provided a lens into all of that through biology, through neuroscience in particular.”
我喜欢认为，几乎每个人都对如何成为最好的自己深感兴趣，而我认为我所做的，就是通过生物学，特别是神经科学，为大家提供了一个审视这一切的视角。
“And at the same time, I think very deeply about how to translate the information in these peer-reviewed papers, how to translate the information in the fields of science and medicine into actionable, what we call protocols.”
同时，我也在非常深入地思考，如何将这些同行评审论文中的信息，如何将科学和医学领域的信息，转化为可操作的、我们称之为“行为准则”的东西。