Yin and yang depend on each other and insufficiency of any side will affect the other. Protracted deficiency of yin will affect yang and cause deficiency of yang. Similarly, prolonged deficiency of yang will affect yin and cause deficiency of yin. Such an inter-consumption of yin and yang eventually results in deficiency syndrome of both yin and yang.
1. Deficiency of Yin Affecting Yang
Deficiency of yin affecting yang means that consumption of yin-fluid involves yang-qi and makes yang-qi insufficient in production or exhausted, leading to a morbid state marked mainly by deficiency of yin with the manifestation of deficiency of both yin and yang.
2. Deficiency of Yang Affecting Yin
Deficiency of yang affecting yin means that consumption of yang-qi involves yin-fluid and makes yin-fluid insufficient in production, leading to a morbid state marked mainly by deficiency of yang with the manifestation of deficiency of both yin and yang.