So a good bit of what we know about diet and health now comes from studies like The Nurses' Health Study, and in the past, from studies like The Framingham Study and The Seven Country Study.
我们现在知道的关于饮食与健康的知识,相当大一部分来自于像,护士健康研究这样的调查,而在过去则是来自像弗明汉研究和,七国研究这样的项目
But it's also helpful to think just for health and well-being in general, what might be done to improve the diet and this will be a good way to try to get at that.
但如果出于健康考虑,想想如何能改善饮食,也是很有益处的,这次的作业就是一个改善饮食的好方式
Changing the diet of populations is a pretty good idea and it's the kind of thing that could help individuals certainly lead healthier, happier lives, but also could change things like healthcare costs for a whole country, so these are big, big factors.
改变大众的饮食是个很好的想法,它不仅可以让人们过上更健康幸福的生活,还可以改变整个国家的医保费用,所以饮食是个非常非常重要的因素
Let me ask another question, if you give this-- and we'll talk about this in a later lecture, but if you give this diet to laboratory animal-- rats, mice, whatever-- it's very common for animals to gain a good bit of weight when given access to this diet.
我们来看另一个问题,如果你给,我们将在以后的课上讨论这个话题,但如果你给实验室动物,像小白鼠之类的,给予某种类型的饮食,这种饮食习惯会使得体重增加
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