Andrew Huberman· PhD
cortisol does have thresholds Beyond which if it's too high can be bad for us but it's also the case that if cortisol levels are too low that's bad for us and it's especially bad for the functioning of our immune system because glucocorticoids of which cortisol is have an important role in activating those natural killer cells of the innate immune system they are one of the primary signals by which those inter lucans like interlan 1 and interlan 6 are deployed in our body