According to Dr. Thomas Lewis, people need to be in relationships because that is how we are designed. He says the brain can only maintain the overall stability of a person’s immune system, bodily rhythms, and heart if it receives input from outside the body in the form of emotional connections with others.

根据托马斯·利瓦伊斯博士的观点，人需要维持与他人的某种情感关系，是因为我们先天就是这样被设计出来的。他说，大脑只有从体外接收到与他人情感联系信息的时候，才能维持一个人免疫系统、机体节奏和心脏整体的稳定性。

(短文节选,本篇始于：爱情大补帖)