Yin and yang are historical Chinese deductive reasoning principles used in Chinese medical diagnosis which may be traced again for the Shang dynasty[87] (1600–1100 BCE). They stand for two abstract and complementary features that every phenomenon during the universe could be divided into. Herbal medicine formulas are developed for every https://andresdbxrk.bloggerchest.com/39858685/the-basic-principles-of-herbs-medicine-chinese