"Yang in spring and summer, Yin in autumn and winter, to follow its roots" is the theoretical problem of how to "follow Yin and Yang" in four seasons. The sun in spring and summer and the yin in autumn and winter are the theoretical problems of how the four seasons follow Yin and Yang. "Yang in spring and summer, Yin in autumn and winter, to follow its roots" is the theoretical problem of how to "follow Yin and Yang" in four seasons. Including beginning of spring, rain, fright, vernal equinox, Qingming, Grain Rain and other six solar terms, the principle of spring health preservation should conform to the positive trend of yang in nature, consistent with the trend of germination and growth of all things in the world, help the body to be yang, regulate the qi of the liver and gallbladder, avoid all kinds of evil spirits in spring, maintain the exuberance of human yang deficiency, and lay a solid foundation for summer health preservation. Nourish the qi of liver and gallbladder. Living and conditioning daily life refers to people's basic survival activities in social life, including people's lifestyle, living habits and working methods. , is an adaptation to society, environment and natural survival. Try to spare some time to do gymnastics, play Tai Ji Chuan or do some other activities during the day to relieve physical fatigue; Do some wholesome recreational activities in the evening, such as singing and dancing, to relieve the fatigue of the day. But you can't be too tired, too tired, too sedentary, too restless, and you can't sleep for a long time, which is not conducive to the relaxation of bones and muscles, so that the blood in the meridians is depressed and stagnant, which hinders the smooth flow of qi in the liver and gallbladder. "Cover in spring" to nourish yang: to nourish yang, we should pay attention to the way of "covering in spring and freezing in autumn". "Spring covering" means taking off winter clothes as late as possible, "covering" the body's heat and ensuring the internal environment for the growth of yang. "Spring covering" is suitable and the yang is strong, so the righteousness is strong, and "avoiding evil spirits and preventing thieves" will not invade the human body. But this kind of "covering" is to cover the body, not to close the room. Pay attention to indoor environmental sanitation, keep the ground clean, and let all kinds of germs lose their breeding conditions. "Virtual evil steals wind, sometimes we should avoid it". We should know all kinds of pathogenic factors to avoid it in time. In spring, sunny days are sunny, warm and pleasant, cloudy days are rainy, and the cold is unbearable. In early spring, there is often a resurgence of cold air, which makes people relive the winter chill. These meteorological pathogenic factors are especially obvious in spring. Sleepiness, dizziness, anxiety, insomnia, poor memory, abdominal distension, lack of food, chest tightness and other "spring sleepiness" phenomena (called "spring weather allergy" in modern times), joint pain, and even the onset of old diseases; It is often the high season of respiratory infectious diseases such as influenza, diphtheria, mumps and meningitis; Infectious diseases such as hepatitis, scarlet fever and chickenpox are prone to occur; Neurodermatitis, measles, acne and other skin diseases occur frequently in spring; Gastrointestinal diseases often occur. In spring, we should pay special attention to the influence of weather changes on the human body to avoid the invasion of "virtual evil thief wind" when the weather changes rapidly.