A lot of what people call sickness is "hyperphysiology" - the body doing extraordinary things from time to time for reasons that may or may not be apparent. Much of disease care AKA medicine is about suppression of the body's own physiology and has nothing to do with healing - quite the reverse in fact. Understanding natural healing processes means taking a fresh look at everything we previously understood about health and disease. I could go on but I should get back to putting in my book.