Dance for a healthy body, dance for a happy body and mind Guangdong Provincial Hospital of Traditional Chinese Medicine Cardiovascular Disease Specialist Chen Bojun Guangdong Provincial Hospital of Traditional Chinese Medicine University City Emergency Department Chen Bojun Zhang Lieyuan With the arrival of autumn, the weather gradually turns cooler, the temperature difference between morning and evening is relatively large, every evening or night, the night breeze is light and cool, many middle-aged and elderly people can be seen dancing in the square, the rhythm is consistent, very beautiful, attracting the attention of many passers-by. Square dance is a kind of square in the form of song and dance presented with openness, self-entertainment, extensive mass participation and popular rhythmic sense of rhythm and artistic beauty of the dance style, based on its own value and charm, and with the increasing awareness of people’s fitness, in recent years square dance as a national fitness movement in the country widely emerged. Square dance is easy to learn, rich in content, with a strong sense of rhythm and music, and can be shaped and fit, which is conducive to improving the psychological and physical qualities of all people. Its benefits to the human organism are mainly the following points: a. Shape, strong body square dance is a form of dance leisure sports, generally most practice time more than 30 minutes, requiring practitioners to pay a certain amount of physical strength, to bear a certain psychological and physiological load, this rhythmic and uncomplicated dance movement, can make many middle-aged and elderly people faster into it. Square dance leisure exercise is a good physical training, long-term maintenance exercise is conducive to reduce body fat composition, improve the body’s coordination ability, invigorate the muscle groups in various parts of the body, strengthen their own physique, enhance their immunity, and shape a beautiful shape. Second, enhance cardiorespiratory endurance, improve cardiorespiratory function square dance is a kind of aerobic exercise, that is, physical exercise in the case of adequate supply of oxygen, which has the characteristics of low intensity, rhythm, longer duration, etc., the exercise process, the body inhaled oxygen and demand equal, to achieve a physiological equilibrium. When exercising, due to the increased demand for blood and oxygen, the number of heart contractions increases, the amount of blood pumped is more than when quiet, the number of breaths is also more than in the quiet state, and the degree of lung contraction is also greater. This continuous aerobic exercise demand can improve the depth and intensity of breathing when quiet, increasing the amount of gas exchange when breathing, ensuring that the body can meet the needs of gas exchange when exercising vigorously. At the same time can reduce the quiet time heart rate, is conducive to heart rest, improve the reserve. Therefore, square dance exercise can enhance the endurance of the heart and lungs and improve cardiorespiratory function. Third, the prevention of cardiovascular disease, delay aging appropriate cycle of square dance exercise can reduce blood lipids, delay vascular sclerosis, reduce the incidence of cardiovascular disease, prevent cerebral atherosclerosis, maintain a good blood supply to the brain, prevent cerebral infarction. Heart and lung, aerobic exercise can enhance the function of the cardiovascular system, can improve the excitability of the heart, enhance myocardial contractility, improve myocardial oxygen utilization capacity, improve blood circulation, conducive to the perfusion of various tissues and organs, improve the metabolism of visceral organs throughout the body, slowing down the cell aging process. Skeletal muscles, regular exercise can improve the blood circulation of bones, strengthen the metabolism of bones, maintain and improve the elasticity and toughness of bones, thicken muscle fibers, improve the contractility, conductivity and responsiveness of muscle fibers, thus delaying the aging of bones and muscle cells. In the brain, aerobic exercise can improve the excitability of the neurotransmission process of the cerebral cortex, shorten the reaction time, improve the function of the central system of the brain, and slow down the aging of the brain. As a national fitness exercise, square dance is loved by many middle-aged and elderly people, although it has a lot of benefits for the human body, but I hope that while people are enthusiastic about this exercise, they should also understand the relevant precautions, not too indulge in it, remember that “different for each person, according to the ability to do”. As the fans of square dance are mainly the middle-aged and elderly groups, the age span is relatively large, and different ages can withstand the intensity of the exercise is not the same, the older you are, the more not excessive excessive exercise. Older people should choose a slower pace of dance music, middle-aged people can choose a slightly faster pace of the track. It is best to measure the pulse rate and blood pressure of the elderly before exercise. Square dance time is best to choose the morning, 1 hour after dinner, fasting for a long time exercise, may lead to hypoglycemia, or even cause fainting. 2 hours before bedtime should not be strenuous exercise, will lead to fatigue, sleep quality decreased. Square dance is aerobic exercise, generally 30 minutes to 1 hour of activity is better, too long but counterproductive. The intensity of dancing should also be appropriate, in the process of dancing, the dancer can maintain a normal conversation, a slight sweat is appropriate, sweating is not only easy to cause a cold, but also may lead to dehydration, blood volume decreases, blood becomes viscous, the risk of inducing cardiovascular disease, especially the elderly cardiorespiratory function is weak, vascular elasticity decreases, blood flow resistance rises, too vigorous exercise will increase the burden on the heart, resulting in insufficient oxygen supply In particular, hypertension and heart disease patients can lead to a sudden rise in heart rate and blood pressure, triggering cardiovascular and cerebrovascular accidents. Therefore, people with cardiovascular and cerebrovascular diseases should seek medical advice to determine whether this activity is appropriate. When dancing, take care not to have a large twisting neck, turning waist and other movements, especially the elderly and patients with back and neck pain. Choose clothes as loose as possible, shoes to sports shoes is better. In addition, some acute diseases such as acute gastroenteritis, acute bronchitis, acute hepatitis, acute myocarditis, cold and fever are temporarily unsuitable to participate in exercise. Dance fitness is good for health, but should be combined with their own physical fitness to choose the right exercise. Let’s dance in the cheerful sound of dance music, dance out of a healthy body, dance out of a happy body and mind!