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，皮质醇对盐皮质激素产生交叉反应；此类般只与种相关类固醇激素结合，上腺皮质球状带层分泌盐皮质激素。

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.

换种说法就是，皮质醇和盐皮质激素结构相似，因此可以和结合并且触发盐皮质激素作用，通过保持液量让血压上升。