But it means that we get ill less often and when we do get sick, we recover more promptly.

但这意味着我们不会常生病，就算病了，也能恢复得更快。

哈佛公开课 - 幸福课课程节选

A lot of didn't get sick from it now, and we got sick from it before.

许多人不会再因为微生物得病了,而人们以前则会因此生病

耶鲁公开课 - 生物医学工程探索课程节选

Does it mean we don't get ill?

这是否意味着我们不会生病？

哈佛公开课 - 幸福课课程节选