Sentence examples for Poor health from inspiring English sources

"poor health" is a correct and usable phrase in written English.
It is typically used to refer to a general state of being unwell or physically weak. You can use it in a sentence like: "Despite her efforts, Susan's poor health often prevented her from fully enjoying her favorite activities." This phrase can also be used in a medical context, such as: "The doctor advised John to make lifestyle changes to improve his poor health."