For those of us who spend a lot of time in the Dorsal Vagus Nerve activated freeze/immobilization/death feigning stress response, a number of otherwise vital biochemical reactions in our brains and bodies can go awry. We may stop producing healthy levels of particular enzymes, peptides, hormones and neurotransmitters, or make too much of these, or else stop being able to remove toxic by-products, that are necessarily created as part of the chemical steps in the creation and degradation of these substances, fast enough.