日常生活中,有相当多的人自称爱吃甜食或咸食。说起来,这是一个让节食者和科学家困惑的问题:为什么我们对包括一些甜食在内的大量能导致发胖的垃圾食品充满了热切的渴望,而不愿意选择对身体健康更有益的食品,比如说苹果?我们热衷于吃不健康的食物真的纯粹是由于嘴馋吗? In everyday life, a considerable number of people claim to eat sweet or salty foods. All told, this is a puzzling question for dieters and scientists: why we are eager to have a lot of junk food that can cause weight gain, including some sweets, rather than choosing foods that are more beneficial to our health, like Apple? We are keen to eat unhealthy food is really purely greedy?