The purpose of health maintenance is to live a long life, and the basis of longevity is health. So, how to maintain health in order to have health? What are the number of requirements and mathematical laws? The author through the practice of life, looking through ancient and modern literature, that the following numbers to know, the content requirements to do, you can make the body and mind in a healthy state of mind, so that “the degree of a hundred years old is to go”. Nutritional techniques are summarized as “one center, two basic points, three major laws, four points, eight points of attention”. A center, that is, health as the center. To speak healthy words, such as a variety of honorifics, joyful language, so that the body of the gas smooth, gas smooth blood smooth, the body metabolism smooth. Line health things, such as smiling, exercise, control the mouth of gluttony, open lazy legs, let fly depressed mood, so that the body’s blood irrigation smooth, so that the body of the limbs and bones, five senses, nine orifices, nine orifices, five viscera and six bowels functioning normally, the health of the body also. Two basic points, that is, to be confused, do things a little dashing. The basic requirement of being a person is to be kind to others, tolerance and understanding, indifferent to fame and fortune, so that we can live in harmony, around the chi field smoothly, the body’s blood running smoothly. Such as the “Su Wen・Superior Ancient Heavenly Truly on the first” said: “calm and empty, the true gas from the spirit of the internal guard, the disease from the”. However, the way of doing things must be clear, and strive for perfection, so that others will be impressed. The three laws, that is, to help people happy – show good character; contentment – calm state of mind; self-congratulation – enjoy life in a comfortable state of mind, that is, always keep happy, gas smooth blood smooth. Danxi Xinfa said: “the blood and qi, all diseases do not arise, a Friesian, all diseases born”. Optimism is a positive character and state of mind, it can stimulate the vitality and potential of people, smooth blood circulation, promote the body metabolism. Four points, that is, the brain to use – the more flexible, hands and feet to move – the more mobile the lighter, the state of mind to be loose – loose blood circulation, the intestines and stomach to be empty – to eat 7, 8 full, the gastrointestinal burden is not too heavy, but also can be better absorption and excretion. However, nowadays, some of the lifestyle is just the opposite of this, such as the increase in the use of mobility tools, so that the two legs are in a state of less movement, the body metabolism is not smooth; with the accelerated pace of social development, so that the people’s mental tension, irritability, stagnation of qi and blood running, brewing all kinds of diseases; coupled with an increase in the social social entertaining, catering with the lack of reasonable, and tend to eat more high-calorie, high-fat, high-protein foods, so that the burden on the stomach and intestines increased, absorption increased, and the gastric burden is not heavy. The burden on the stomach and intestines is aggravated, absorption is increased, metabolism is stagnant, and the three high symptoms are prominent, posing a serious threat to the health of the organism. Eight notes, that is, the four cornerstones: smoking cessation and alcohol restriction, aerobic exercise, reasonable diet, psychological balance; four best: the best doctor is their own, the first time to find physical discomfort is my own, know the cause of the person or my own, therefore, their own understanding of the body’s most clear; the best medicine is time, the earlier the discovery of the body’s discomfort, the easier the treatment will be, and the effect is also fast; the best exercise is to walk, the best medicine is time, the earlier the discovery of the body’s discomfort, the easier the treatment, and the effect is fast; the best exercise is walking, the best exercise is walking, the best exercise is to walk. As the saying goes, “a hundred refinement is not as good as a walk”, walking can mobilize the whole body’s muscle rhythmic contraction, massage and dredge blood vessels, promote blood circulation, increase the amount of blood back to the heart, enhance heart function. Moreover, it can improve the quality of red blood cells, activate blood circulation, reduce high blood fat, high blood viscosity, high blood sugar, high uric acid, improve fatty liver, and stabilize blood pressure. At the same time can also make the spleen storage “gold blood” release a large number of T lymphocytes, improve human immunity; the best mood is quiet, quiet to far, quiet is smooth, smooth blood, natural metabolism is good. In short, as long as you insist on living in accordance with the above techniques, to grasp a degree, then, the human body viscera and bowels function is strong and healthy, the blood runs smoothly, the body’s vitality is active, naturally, the human body on the health of longevity carry on.