translation.en: I started out by trying to figure out what romantic love was by looking at the last 45 years of the psychological research and as it turns out, there's a very specific group of things that happen when you fall in love.
translation.zh: 为了找到浪漫爱情的内涵 我翻阅了45年来心理学方面的研究成果 发现当人们陷入爱情的时候会发生一些特殊的现象