Chicken is delicious and nutritious, containing not only rich protein and fat, but also large amounts of various nutrients such as calcium, phosphorus, thiamin, riboflavin, nikonic acid, vitamins A, D and E. Foot San Li is an acupoint in the human body located three inches below the border of the knee, between the tibia and fibula (one transverse finger from the lateral aspect of the anterior tibial crest), and is a joint point of the Foot Yang Ming Stomach meridian. So, how did the foot San Li come to be related to the old hen? It turns out that people in ancient China invented and discovered many ingenious methods in their pursuit of prolonging their lives. Quite a number of methods are economical, practical, convenient and easy to use. The discovery of the efficacy of the foot three miles is one of them. According to traditional Chinese medicine, chicken can nourish the kidneys and essence, the spleen and stomach, blood and yin, and can be used to treat impotence, spermatorrhea, spermatorrhea, loss of appetite, yellowing of the face or postpartum weakness, dizziness, less breast milk and amenorrhea, low menstrual flow, etc. The famous gynecological medicine “Wuji Baifeng Pill” is based on Wuji Chicken as the main ingredient. Especially the old hen is more beneficial, and it is suitable for people who have been sick and weak for a long time. In the process of fighting against diseases, people found that the foot three miles has similar effects as chicken, and is an important health point for the human body, which can also be used to tonify the kidneys, benefit the essence, spleen and stomach, and nourish the blood and yin. Experimental observation of patients with esophageal cancer revealed that acupuncture of the foot San Li point resulted in enhanced peristalsis of the esophagus, widening of the canal lumen, and release of spasm; acupuncture of the foot San Li in patients with gastric disease showed a two-way adjustment of the gastric electrogram; in the exploration of the mechanism of acupuncture affecting gastric function, it was found to be related to gastrin. The peak response of serum gastrin in patients with atrophic sinusitis at 30 to 60 minutes after acupuncture was 1.65 times higher in the atrophic sinusitis group than in the fasting control group; acupuncture of the foot three li also has the effect of regulating the body’s immunity and enhancing the ability to resist disease. These reports fully demonstrate that acupuncture of the foot San Li point can regulate body functions and has a health-care effect. As the saying goes: “If you want to be safe, the three li is often not dry” This phrase literally means that if you want to be healthy, you should make the foot three li often keep wet state. So, how to maintain this “not dry” state? The ancients often used “septic moxibustion”, that is, once a day, moxibustion foot three miles point, moxibustion moxa, once about 15 minutes or more. When small blisters appear at the acupuncture point, stop moxibustion and keep the local skin clean and leave the blisters to absorb on their own. The ancients believed that this was equivalent to the effect of a daily tonic for an old hen. This method of health care was economical and convenient at that time when material civilization was not yet developed. Therefore, this method soon became popular among the people. Nowadays there are still many people who like to moxibustion or acupuncture and use it for health care, it should be noted that the application of septic moxibustion should be strictly disinfected to prevent infection.