Exactly how the differences in bacteria might make vaginally born babies less prone to allergies and asthma isn't yet clear, but it does point to a difference that researchers can look at going forward.

VOA: standard.2010.06.30

What about that case? Well, I think if we were doing a matter of physics, as it posed to--sort of psychology Psychologically we understand why, losing weight might make a real difference about how you feel about yourself.

这个案例该如何解释，我认为，如果我们在研究物理问题，或者，心理学问题,从心理学的角度我们明白原因，减肥可以让你,自己感觉非常不一样。

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