This is strange because the sorts of lab animals the researchers looked attend to be given lots of food and left to nibble at leisure.

这很奇怪，因为研究人员观察的各种实验室动物往往被给予大量食物，且让它们在闲暇时一点一点蚕食。

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That's a lot easier to do with lab animals than with children.

在动物身上做试验比在孩子身上做实验要容易得多。

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To complicate matters further, not all lab animals respond to infections in the same way.

让事情更加复杂的是，不是所有的实验动物都会对感染用相同的方式反应。

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So the fact is those lab animals have a hard-wired preference for foods that are high in fat and high in sugar, primarily because of the energy density that those foods bring to one, and then the variety is important because you get a mix of nutrients.

事实上 实验动物对高脂肪高糖的食物,有着强烈的偏爱,而这种爱基于,该类食物能给我们提供高能量,多样性很重要,因为你能摄取多种营养

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

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