Chinese Medicine had starts 2thousand years before Christ, and has

Chinese Medicine maintains that preserving the strength of the body as a whole is the most important attribute against the development of disease. This means that, while efforts are made therapeutically to relieve symptoms and counter pathogenic processes, and equal or greater emphasis placed upon replenishing the body's natural substances (Qi, Moisture, and Blood) and restoring the coordinated activity of the body's primary organ systems (known as the Heart, Liver, Spleen, Lung, and Kidney Networks). It is the ability of the organism to sustain its own defensive capability, regenerative potential, and regulatory mechanisms that enables it to remain adaptable and well.
Early in the history of Chinese medicine, around the 2nd and 1st millenia before Christ, the primary causes of illness were thought to be the negative, external influences such as ancestral spirits and powerful deities that indifferently ruled the weather, seasonal change, the abundance of crops ant the lives of ordinary people. The dominant mode of healing during these ancient times was shamanic intervention by sorceres. Centuries later, during the Han dynasty (200 B.C.-100 A.C.), the notion of supernatural forces as agents of disease was replaced by a more sophisticated, rational and empirical paradigm in which human life and the world at large were understood to be governed by natural, impersonal forces-what we would now consider to be the natural laws of physics and biology.
It was during this 400 year period of fervent intellectual growth that the cosmological and philosophical theories of the Yin and Yang and Five Phase Theory were logically organized and systematically applied to the art and science of medicine in a medical document: The Yellow Emperor's Classic of Internal Medicine. The anonymous autors of this treatise emphasized three causative conditions for the genesis of disease: harsh environmental forces such as changes in climate or weather (external causes);and personal behaviors such as overeating, undereating, consuming spoiled or poisoned food, overwork, sexual overindulgence, lack of appropriate physical activity and unethical conduct. A predominance of persistence of any of these factors could upset the harmonious relationship between a person and his or her physical or social environment, as well as disrupting the