Second, cortisol starts cross-reacting with mineralocorticoid receptors, which normally only binds a related steroid hormone - mineralocorticoids which are secreted from the zona glomerulosa layer of the adrenal cortex.

第二，皮盐皮受体产生交叉反应；此类受体一般只与一种相关类固结合，即从肾上腺皮球状带层分泌盐皮。

In other words, because the cortisol is structurally similar to mineralocorticoid, it can bind to that receptor and it can trigger the mineralocorticoid effect - which is mainly to increase blood pressure by retaining fluid.

换一种说法就是，皮和盐皮结构相似，因此可以和受体结合并且触发盐皮作用，通过保持体液量让血压上升。