Theory of Yin and Yang
Functions of Yin and Yang
The understanding of the functions of Yin and Yang is fundamental for the understanding of Chinese Medicine. It helps us to comprehend and differentiate pathological symptoms. If the functions of Yin and Yang are combined with the physiology of the Zang-Fu organs, than most of the symptoms and patterns can be explained logically.

Yin functions to cool to nourish to moisten to calm |  | Yang functions to warm to transform to move to protect to hold