Most of the sleepiness after moxibustion is due to the fact that moxibustion regulates the balance of yin and yang in the body, the blood circulation is smooth, the mind and spirit are calmed, and the body is in a state of complete relaxation and comfort, which results in the feeling of wanting to sleep and sleepiness. Moxibustion is mainly through the burning of moxa produced by the heat, the local acupuncture points or meridians for thermal stimulation, to play the role of blood circulation (to promote blood flow, eliminate blood stasis in the body), dredge the meridians and other effects. After moxibustion, the meridians and blood vessels can be opened, and enhance the positive qi of the body, so that the yang into the yin can be nourished, and the yin into the yang can be warmed, yin and yang secret; at the same time, after moxibustion the balance of yin and yang qi and blood, so that the patient’s mind and soul to stabilize the patient, and then there will be a feeling of drowsiness. Patients are recommended to have moxibustion performed by a professional doctor to determine the duration of moxibustion according to the specific condition and to ensure the safety of the moxibustion treatment.