Research on"Five evolutive phases and six climatic factors"and Chinese medical constitution

The doctrine of"Five evolutive phases and six climatic factors"has a solid foundation of astronomy.In the traditional Chinese calendar,the years are designated by the circles of the Heavenly Stems and Earthly Branches,which reflects the cyclical regularity of the movement of the Sun,the Moon,the Earth and the stars.The cyclical movement brings up the qi transforming patterns(produce,growth,transformation,contraction and store)of the living things.The patterns are also the underlying foundation of human constitutional tendency.According to the Heavenly Stems and Earthly Branches of someone’s pregnant period and birth time,we could know the universe qi transforming characteristics of that time,thereby conjecture the constitutional tendency of the person.This is a very important way to research Chinese medical constitution.