Let me begin by introducing you to The Shanghan Lun. "Damage Disorders" or the "Treatise on Cold Injury". It is a Traditional Asian medicine treatise that was compiled by Zhang Zhongjing sometime before 220 AD, at the end of the Han dynasty. It is amongst the oldest complete clinical textbooks in the world. To understand it fully is a very complicated topic and would take years of study. In short, according to my interpretation of the Shanghan Lun, even though this is a compl