心理健康用英语可以表示为"mental health"。这个词来源于两个英文单词："mental"和"health"，它们分别表示"心理的"和"健康的"。

例句：

It's important to prioritize your mental health.

（重视心理健康很重要。）

Taking care of your mental health is just as important as taking care of your physical health.

（照顾心理健康和身体健康一样重要。）

Many people struggle with mental health issues.

（很多人都有心理健康问题。）