麻烦英语高手！！！急用！

警察心理压力的增大，对警察的身心健康造成了威胁

As the police's mental pressure goes heavier, their physical and mental health is threatened.

"physical and mental health" 为整体概念，故后用单数is

什么意思啊？要翻译这一句么？

Policemen have a great amount of psychological pressure, which caused a great threat to his physical and psychological health.

The rise of policemen's mental pressure has become a threat to their physical and mental health.
楼上翻错了。psychological是“心理学的”的意思，“心理的”应该是mental。 physical and mental health是一个常见的固定词组，意为身心健康。

The rise of polic's mental pressure has threaten their physical and mental health seriously.