Are you sure you read that properly? Maybe it is not clear from the text, but basically adrenal gland malfunction which result in hyperproduction of adrenaline literally burn you up.

Hormone disbalance in general can mess you up seriously. I have a female friend which had all sorts of health issues. Bringing hormone levels under control (not hormones themselves but the causes) helped her become a new person and liven up. She might even consider having kids now. She is still under all sorts of therapies, but it is not trivial to relate causes and effects, her case not being even remotely mistic. Imagine when the direct cause is a rarely problematic hormone, provoked by an even more obscure issue.