Discussing"Preserving" Method is the Essence of the Theory of "Yang-preserving in Spring and Summer,Yin-preserving in Autumn and Winter"

From the objective judgment proposed by Neijing:" Yang-preserving in spring and summer,Yin-preserving in autumn and winter"might to the aim of"health,resist disease,longevity".Physicians face this thesis,put forward scientific questions of how to"nourishing yang in spring and summer,nourishing Yin in autumn and winter"?That is how to preserve" Yin Yang"?Facing all kinds of theories,among which there are seemingly opposite even conflicting views,so that scholars can not appreciate its panorama,only through how to"raise"to guide the clinical realities and the doctors different academic point of view,apparently to"preserving"is the essence of the theory.