I'd come to think that "Adrenal Fatigue" was actually dysregulation of the (L)HPA axis. This fella is saying it's specifically in the H part, the hypothalamus. In particular, the PVN (paraventricular nucleus).
My hunch was that the issue was in the link between the (L)imbic system and the (H)ypothalamus, in particular something to do with the limbic system's amygdalae. Just a hunch.
I'll have to look more deeply into this.
Lately I've been suspecting that bad sleep is a major contributing factor.
Thanks for the link.