Many people love their ice cream, pizza, french fries, candy despite knowing that these are unhealthy. What is it about those foods that give them such mass appeal?
尽管很多人都知道像冰激凌、披萨、炸薯条、糖果等食品不健康,但是人们还是喜欢吃。为什么这类食品会有如此之大的吸引力呢?
From an evolutionary perspective, it feels reasonable to be confused about why humans have strong desires for as unhealthy of a behavior as eating high-calorie and sugar-heavy foods.
从进化角度来讲,关于为啥人类对高热量高糖食物有着强烈的渴望人们表示很困惑,但似乎又情有可原。
They're bad for hearts, bad for pancreases, bad for physiques. But they taste so good.
高糖高热量食物对心脏、胰腺、体型来说都不好,但它们味道很好。
One answer is found in a careful examination of our evolutionary history.
在仔细检查我们的进化史后,答案找到了。
It's true that an unhealthy behavior will in general may get weeded out across time, because the members of a species drawn to that behavior will not live as long and reproduce as much as the healthier ones.
的确,随着时间的流逝,不健康的行为一般都会被淘汰,因为喜欢这种行为的物种成员与喜欢健康行为的物种相比,他们不是活不久,就是繁殖的太少。
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