In the dictionary of traditional Chinese medicine, "health preservation" is a theory and method to study how to enhance physical fitness, prevent diseases and prolong life. From "Lingshu itself". "Bao Piaozi inside. "Wei Zhi" said: "Whoever wants to keep fit doesn't have to be heard more, but should be knowledgeable, choose well and revise articles." There are many contents and methods of health preservation, and the health preservation viewpoint represented by adjusting diet, being careful with life, being suitable for cold and temperature, and being happy and angry.

In the first chapter of Huangdi Neijing, it is proposed that the skills should be harmonious, the diet should be moderate, the life should be regular, the emptiness should be indifferent, abstinence should be avoided, and the essence should be preserved. The technique of sum number is to cultivate one's self-cultivation in various ways, such as breathing, breathing, qigong and so on. Moreover, eating and drinking are regular, and daily life is regular, that is, eating and sleeping should be rhythmic, and returning at sunrise and sunset, not staying up late, not smoking or drinking. Plain nothingness means that the mind is quiet and the heart has no distractions. Abstinence abstinence requires attention to sexual intercourse.

The second part discusses the natural law of four-season growth and collection and the method of adapting to four-season health preservation.

In March (March, April and May) in bloom, we should stay up late (no later than 22: 30) and get up early, let loose our hair, unbutton our clothes, relax ourselves, walk in the courtyard, make our spirits happy, keep our minds open and make everything full of vitality. Don't fight, give more and take less, reward more and punish less. This is a way to adapt to spring and keep your hair growing. If it violates the qi of spring, it will damage the liver, make the conditions of replenishing qi in summer insufficient, and cold lesions will appear in summer.

Xia San month (June, July and August) is a lush and colorful season. The qi of heaven and earth meet up and down, and all kinds of plants blossom and bear fruit. At this time, you should go to bed late and get up early, and don't get tired of this long day, so that you can be calm and have no anger, let Ming Xiu be filled with sacred light and let the sun be the spirit vent, as if there is love outside. This is a way for people to adapt to the summer atmosphere, so as to recuperate and grow. Violation of this rule will damage the mood, malaria may occur in autumn, and the ability to adapt to gas collection will be reduced. When winter comes, you will get seriously ill.

Autumn and March (9.10.165438+10) are full and ripe seasons for all fruits. This season, the weather is fine, the wind is urgent, the vegetation is withered, and the earth is clear and clean. People should go to bed early and get up early, and work and rest with chickens at the same time. Make the mood stable and calm, thus buffering the influence of cold air in late autumn on people; The air that diverges outward before convergence makes the human body adapt to the breath of autumn and achieve mutual balance; Don't let your emotions leak out, so as to keep your lungs open. This is the law of conforming to the autumn spirit and maintaining the convergence function of the human body. Violation of this rule will hurt the lungs and will be discharged from the valley after birth in winter. The reason is that the convergence function of human body can not be properly maintained in autumn, which leads to insufficient closed storage in winter.

Winter and March (12. 1. February is the season when everything is full of vitality and hidden. In this season, water will freeze and the earth will crack, so people should not disturb the spirit of the sun. If they want to go to bed early and get up late, they must wait until the sun comes up. Let emotions lie in ambush like an army, like fish and birds hiding deep, like people having privacy, like getting something from their hearts, and so on. Also stay away from cold places, close to warm places, and don't let your skin sweat, which will cause a large loss of yang. This is the law to adapt to the winter weather and maintain the hiding function of the human body. Violation of this rule will harm kidney qi, and it will also lead to weakness and cold limbs in spring. The reason is that the closed function of the body can not be properly maintained in winter, which makes the energy supplied for rejuvenation in spring less and insufficient.