On the Circulation Law of Ying Qi and Wei Qi for Day and Night is the Key of Sleep Activities

This essay according the sleep theory of Ying Qi and Wei Qi's circulation in Nei Jing ,explains that Ying Qi and Wei Qi's circulation is the internal basic for human's sleep-wake rhythm,and it's relationship with other sleep theories,such as mental activity sleep theory,soul sleep theory,zang-fu organs sleep theory etc.It can be seen that the circulation law of Ying Qi and Wei Qi for day and night is the key of sleep activities,and Ying Qi and Wei Qi's circulation disorder is the key of dyssomnia,so we should use coordination of Ying Qi and Wei Qi as basic method for treating dyssomnia,based on treatment with syndrome differentiation.