我的回复(2011-2-12 16:30):In Chinese philosophy and religion, two principles, one negative, dark, and feminine (yin) and one positive, bright, and masculine (yang), from whose interaction all things are produced and all things are dissolved. As a concept the two polar elements referred originally to the shady and sunny sides of a valley or a hill but it developed into the relationship of any contrasting pair: those specified above (female-male, etc.) as well as cold-hot, wet-dry, weak-strong, etc. It is not a distinct system of thought by itself but permeates Chinese life and thought. A balance of yin and yang is essential to health. A deficiency of either principle can manifest as disease. (Encyclopedia Americana) http://www.nlm.nih.gov/cgi/mesh/2011/MB_cgi?mode=&term=Yin-Yang
阴阳(Yin-Yang)1992年就列入了美国最权威的《医学主题词表MESH》,用于检索有关阴阳的研究文献。说明阴阳学说为全世界所公认,并且在分子生物学水平进行国际研究。