精神压力大

However, researchers believe stress may be the key.

研究人员认为根本问题在于他们的精神压力大。

In general, any job is better than no job, but it is true that some jobs are dangerous, distressing, or fail to put workers above the poverty threshold.

有工作总比没有好，但有些工作的确非常危险，或是精神压力大，或者是无法把工人拉上贫困线。

Moreover, the knowledge of things women feel more nuanced psychological, mental stress, caused by endocrine disorders, premature ovarian failure occurs then.

而且，知识女性对事物的心理感受比较细腻，精神压力大，造成内分泌紊乱，进而出现卵巢早衰。

He said this finding confirms previous studies, which suggested there was a link between mental stress and the narrowing of blood vessels.

这证明了先前实验的结论--精神压力大与血管收缩之间有直接的联系。

The main reason poor people are stressed is that they are at the bottom of the social heap as well as the financial one.

主要导致穷人精神压力大的原因是：不管在社会还是经济阶层，他们都生活在底层。