Now the intervention studies are stronger methods than the epidemiology studies but they're also more difficult studies to do.
相比传染病学研究,干预性研究更有效,但也更难执行
The epidemiology studies are what a lot of our information comes from.
我们所知的大多数信息都是来自,传染病学研究
One are epidemiology studies and then the second are intervention studies.
一种是流行病学研究,另一种是干预性研究
That's a little interesting anecdote about the epidemiology of these things.
这是流行病学研究中的一个有趣的例子
Now the epidemiology studies are observational studies.
流行病学研究是观察性研究
That's how epidemiology is usually done.
这就是流行病学研究通常的做法
Now several lectures down the road we'll talk about modern food and epidemiology; that is what the research on food intake and human health, and what do we know about our health and well-being based on diets.
接下来的几堂课,我们将讨论现代食品和流行病学的关系,即食品摄入与人类健康方面的研究,我们通过饮食来了解自身健康状况
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