According to the viewpoint of Zi Wu Liu Zhu, Chinese medicine practitioners believe that the time period between 3:00 pm and 5:00 pm is the time period for the lung meridian to circulate. However, there is no such thing as organ detoxification. Hand Taiyin Lung Meridian, one of the twelve meridians, is mainly located at the inner front edge of both upper limbs, and this meridian treats diseases of the larynx, chest and lungs. The twelve meridians correspond to the twelve hours of the day, and at 3:00 p.m. to 5:00 p.m., which is the Yin hour. At this time, the qi and blood of the lung meridian are relatively vigorous in the order of flow. In Chinese medicine, it is believed that the lungs are the main source of qi for the whole body, and they are complemented by the heart, which carries blood around the body. Therefore, the smoothness of the lung meridian is a line of defense for the body against external evils. In normal life, you can massage the lung meridian under the guidance of a professional physician to make the lung meridian smooth, the smooth flow of qi and blood.