The Liver is more than just a metabolic or digestive organ; it is a critical element of the immune system and the primary regulator of systemic immunity and inflammation. It sits as a gatekeeper protecting the system from dangerous elements of the gut microbiome and the parade of foreign things passing through the gut. It can engulf microbes, transform toxins, and if stressed by inflammatory triggers from the gut, send signals to regulate the "Inflammatory thermostat" of the entire system. When the barrier function of the gut is compromised or degraded, elements passing to the liver trigger cytokine warning signals that alter liver function and affect vascular and immune physiology in every region of the body.  These gut-to-liver-to-system signals dial down liver detoxification, bile production, and hormonal clearance, producing classical signs of "liver stagnation" including degraded clearance of estrogen.  They are now recognized as the primary triggers for migraine headache; they can also inflame endometriosis and cause its proliferation.  We will describe this pathophysiology and present key traditional dietary and herbal therapeutics we have honed for this gut-to-liver-to-system complex over the last 30 years.