I don't know if I'll have time for this one, but I think you are absolutely right about its application.
I'm curious whether Dr. Lembke goes into the other 4 major hormones/neurotransmitters of serotonin (mood, sleep, digestion), endorphins (mitigation of stress and pain), cortisol (increase of stress, and activation of "fight or flight" response) and oxytocin (associated with empathy, relationships and sex). Probably I do need to make time for this!