After the Spring Festival, the sun shines, the cold wind becomes warm, the park exercise more people up. However, exercise should also pay attention to the method, especially the elderly, in the first warmth of the time, exercise to pay attention to the “four preventions”: a wind cold: early spring season, how warm but still cold, the temperature changes, the morning and evening temperature difference. Chinese medicine believes that the main spring “wind”, the natural world in the wind is more prevalent. At this time, with the rise in outside temperature, the human coup skin pores have opened, while the cold winter depleted the body more yang, the human body resistance is low, it is easy to feel the wind, such as colds, rubella, stroke, facial paralysis, joint pain and other symptoms, the elderly are also prone to relapse or aggravation of the body’s original disease, and even cause serious complications. Therefore, the elderly should remember to exercise: early spring should be warm, clothes should be gradually reduced, do not go out too early, there is Yang then exercise. The weather in early spring is still cold, the morning and evening temperatures are very low, the climate is unpredictable, you should pay attention to keep warm; secondly, there are more impurities in the air, not suitable for exercise; the sun comes out, the temperature rises, the concentration of carbon dioxide in the air will be reduced, this is the more suitable time. Two anti-sweat too much: people always think that the more sweat, the better the effect of exercise, in fact, it is not. In the case of suitable temperature, sweating definitely has a good exercise effect. A certain amount of sweating within the detoxification effect, but the spring temperature compared to the summer is still relatively cool, skin pores for the body’s immune system’s first line of defense, sweating too much is easy to let the pores expand, the wind and cold of evil take the opportunity to invade the body, easy to make the body by the wind and cold, inducing respiratory diseases or other diseases of the body. At the same time, after a cold winter, the body loses more yang, and with the rise in temperature, the recovery of yang also needs a process. Chinese medicine believes that “the lungs are the master of the skin” and “sweat is the heart fluid”, meaning that the opening and closing of the skin pores of the human body is controlled by the function of the lungs, too much sweat excretion will damage the lung qi and deplete the heart’s yang qi and yin blood. At the same time, too much sweat will take away some precious trace elements from the body. Therefore, it is not advisable to sweat too much during spring exercise, and when you finish exercising, you should immediately dry your sweat and put on clean clothes to prevent you from feeling the wind and cold. If you have a cold, you should not participate in physical exercise, but should rest more, and then participate in exercise only after the cold has healed. As long as you can adhere to each 30 minutes, 3 times a week, or 2 times a day, each 15 minutes of aerobic exercise, such as walking, climbing, rope skipping, jogging, outdoor gymnastics, etc., is a good way to spring exercise. Three prevent sports injuries: winter brings us in addition to the cold and stiffness: because the body “cat” a winter, the body organs such as internal organs, muscles, joints are at a lower level of function, bones and ligaments are very stiff, the whole body is not smooth. Initially resume exercise, sudden bending, kicking, strenuous exercise, even twisting, jumping rope, pulling, leg press, are prone to cause sports injuries. Especially before engaging in strenuous exercise, “warm-up exercise” is indispensable, which is to prevent muscle, joint, ligament and bone damage. In addition, the exercise time should be gradually increased, step by step, so that the muscles and joints have a gradual process of adaptation, blood and Qi gradually smooth up. Be careful not to overdo the initial amount of exercise and exercise amplitude. In the winter, many elderly people’s activities are greatly reduced compared to the usual, therefore, just into the spring exercise, should focus on recovery, do some activities of the body, joint activities. To prevent sports injuries, we should pay attention to: first, the duration of exercise should be gradually extended, the intensity of exercise gradually increased, the range of movement of limb joints should be moderate, do not pull strongly and stretch strongly and twist, and act according to the strength, stop when appropriate, moderate that stop. Four prevent the recurrence of old diseases: people suffering from chronic diseases, the body’s yin and yang qi and blood in a state of imbalance, the original lack of positive qi, or both phlegm, dampness, cold, heat, blood stasis and other endogenous evil, spring temperature, air pressure changes, the temperature difference between morning and evening, the wind is strong, and Chinese medicine believes that “wind is the first of all diseases. If life is not regular, diet is out of order, plus improper exercise, it is easy to feel the wind evil, inducing old diseases, or injury to yin and yang qi and blood, so that the more deficient the more deficient, endogenous evil take advantage of the deficiency and become the evidence of recurrence of old diseases. Modern medicine believes that the spring temperature changeable, windy, cold and temperature uncertain, often cold wave invasion, large changes in air pressure, in the process of each temperature change, can cause the human body vascular stretch difficult to adapt to the elderly stroke, myocardial infarction, or angina pectoris aggravation. Some immune diseases such as rheumatism, rheumatoid arthritis, ankylosing spondylitis, dry syndrome, and certain neurological diseases such as migraine, can also worsen or recur in spring. In spring, everything revives and the air is filled with grass, dust, pollen and other allergenic substances, which are most likely to induce allergic diseases, such as allergic rhinitis, asthma, urticaria, dermatitis, allergic purpura, etc.