我引用的英文全部是你自己给出的链接里的内容啊。是你自己对什么叫肾虚的回答呀。我再引一遍：

• Adrenal fatigue-老美都知道：） - Michelangelo -     (242 bytes) (209 reads) 10/21/2020

回答: 但什么叫肾虚呢？ 由 咪呜 于 2020-10-21 13:03:02

https://www.mayoclinic.org/diseases-conditions/addisons-disease/expert-answers/adrenal-fatigue/faq-20057906

你给出的链接里的内容：

“  Adrenal fatigue isn't an accepted medical diagnosis. It is a lay term applied to a collection of nonspecific symptoms, such as body aches, fatigue, nervousness, sleep disturbances and digestive problems.

Your adrenal glands produce a variety of hormones that are essential to life. The medical term "adrenal insufficiency" refers to inadequate production of one or more of these hormones as a result of an underlying disease or surgery. ”