Our preference for sweets and fats is an evolved psychological mechanism. We do not consciously choose to like sweets and fats; they just taste good to us.

人们偏爱糖果和油脂就是一种精密的心理演化机制，我们不是有意识的去选择喜欢甜食和脂肪，只是它们的味道实在不错而已。