In health and combat practices dating back to ancient China, man was part of the energy field of the universe. The body itself consists of chakras – energy centers and meridians through which energies are transmitted. On the meridians there are points of entry or impact on the energy channel, and therefore on the entire body as a whole.
Wars and monks could devote their entire lives to perfecting what they had learned from their teacher. In particular, they looked for points on the human body to cure, make vulnerable, kill or make immortal.
Legend has it that in 1885, at the invitation of the first minister, an old peasant Mampe arrived in Edo (now Tokyo). And there was Mampe at that time in 194. The minister asked the peasant what was the secret of his longevity. The old man replied, "I learned mox from my ancestors and used it all my life. Every month from the first to the eighth day of the moon, my whole family and I do ourselves cauterization at the point of zu-san-li. My wife is now 173, my son is 153, and my grandson is 105." It was a real secret, and Old Man Mampe went home with rice, money and honor. And 48 years later, a new bridge was built in Edo and Mampe was invited as a guest of honor. Old Man Mampe accepted the invitation. What happened next with a simple ploughman is silent, but Zu-san-li in the modern practice of China and Japan is considered a point of longevity.
Those of us who practice cauterization with chopsticks, I think, need no explanation. For beginners in the world of meridians, dots and chakras, the ritual of the first phase of the moon at lunchtime may be interesting.
Choose a pose in which you will feel the point of Zu-san-li, it is unlikely that this is a traditional Japanese pose while eating, the incredible pose of a farmer in 1885 on European furniture, even less likely to do cauterization to yourself while lying on the couch in a pose for psychoanalysis. So either lotus modifications or a European chair.
– Warm your palms, there is enough heat in them for energy to rush through the Zu-san-li point into the yang-ming meridian. (According to Chinese teachings, 3/4 of all elements of the immune system, more than 20 of its own hormones, on which the work of the entire hormonal system depends, are concentrated on the meridian of the gastrointestinal tract.)
– Put your palms on your lap.
– Under the ring finger you will feel the fossa between the bones of the leg. Look at the picture, this is the point of Zu-san-li – the mouth of the meridian yang-ming, the point of longevity and the point of 100 diseases. 
The second way to find a point
is to move your palms to feel the heat flows between that point and your palms. Stay in this position for 1-3 minutes.
– It is better to massage the zu-san-li point alternately on each leg separately, with circular movements of the thumb clockwise (stimulating massage – done before lunch, during the new moon) or counterclockwise (soothing massage – done after lunch, during the full moon). If the yang-ming channel is free of "plugs", then you can feel a painful tingling sensation in the forehead, legs and / or shoulder blades.
In Tibetan, Chinese, Japanese and other medicines that actively use the effect on the points, the zu-san-li point is considered one of the most important in the body. The effect on only one zu-san-li helps to increase yang-energy with rapid fatigue, to increase immunity, normalize blood pressure, to improve the functioning of the heart, spleen and other organs. Zu-san-li has a beneficial effect on muscles and skin condition. Perhaps zu-san-li is really the entry point into a long and happy old age.
But acupressure
, especially "cauterization" of the zu-san-li point, has contraindications for acute fever, temperature, oncological diseases, heat intolerance and myocardial infarction.