Dr. Lan Xiu's zero limit method will not bring any direct negative impact or harm. This method mainly focuses on personal inner cleaning and adjustment, and achieves the purpose of rehabilitation by changing the patient's thinking mode and emotional state. Compared with the traditional medical methods that need direct interaction with patients or medication, the zero-limit method pays more attention to the individual's internal strength and self-healing ability. Its core idea is that there is a close relationship between body, mind and emotion, and health and rehabilitation can be promoted by eliminating negative beliefs and restoring balance.