translation.en: Psychologists classify eaters into two groups, those who rely on their hunger and those who try to control their eating through willpower, like most dieters.
translation.zh: 心理学家把“吃货”分成两类 一类人靠本能的饥饿反应去吃 另一类人则是用意志去控制饮食 就像大多数节食者一样