What is considered healthy? With the development of society and the change of medical model in recent years, the traditional, narrow concept of health, which is based on the criterion of “not getting sick”, has been replaced by a new concept of health that takes into account the biological, psychological and social dimensions in a broad sense. The new view of health is that “health” means that people should be in a state of physical, mental and social well-being, and that these three aspects are closely related to individuals, families, communities, governments and hospitals, i.e. good health is created by the whole society, and it also emphasizes people’s responsibility for self-care. It also emphasizes people’s responsibility for their own health care. The new concept of health covers both physical and mental health, and currently, chronic diseases have become an important issue in people’s quality of life, with cardiovascular and cerebrovascular diseases being the first problems affecting the health of the elderly. Our survey shows that more than 2/3 of the elderly in Beijing suffer from chronic diseases, with a prevalence rate of 76.6%. The main chronic diseases suffered by the elderly are hypertension (62.0%), cerebrovascular disease (32.9%), deafness (27.0%), coronary heart disease (24.6%), bone and joint disease (22.4%), cataract (18.2%), prostate disease (17.0%), diabetes (10.6%), Alzheimer’s disease (8.3%), and chronic bronchitis (6.9%). Through a longitudinal survey of the health status of the elderly population, the prevalence of chronic diseases among the elderly also showed a trend of year-on-year increase, with the prevalence rate increasing by nearly 20 percentage points in 2004 compared with that in 1992. At the same time, the number of people suffering from multiple diseases has increased, with 34.5% of the elderly suffering from more than 2 diseases in 1992, but 51.2% as of 2004. The prevention of chronic diseases is a matter of urgency. To prevent chronic diseases, the elderly should observe the six elements of individual health: First, regularity of life. Regular and orderly life is the guarantee of health, should be to live sometimes, reasonable sleep. Ensuring adequate sleep is an important factor in ensuring good health. Sleep is an important physiological process in metabolic activities. Healthy living habits and regular sleep can make the body’s hormones secrete normally and maintain a relative balance, thus ensuring that the vital organs work in a stable internal environment. Second, reasonable diet. The elderly have lower digestive function and different degrees of changes in the cardiovascular system and other organs. Therefore, the elderly should have a moderate diet, pay attention to low fat, low salt and low sugar, increase the intake of starch and dietary fiber in the diet, eat more vitamin-rich foods and eat less raw, cold, fried and fried foods. This will help to control blood lipids and make blood pressure drop. At the same time, should also be based on their own exercise and chronic disease to control the amount of food and weight, body mass index is calculated as: weight kg / height of the square meter. The normal value of the index is 20-22, if greater than 25 is overweight, with the risk of chronic disease. In addition, men with a waist circumference greater than 102 cm and women with a waist circumference greater than 88 cm are abdominally obese and also need to control their weight. It should be noted that the elderly should not lose weight too fast, less than 1 kg per week is appropriate. Third, moderate exercise. Exercise can improve circulation, improve arterial elasticity, maintain normal blood pressure and enhance cardiopulmonary function; enhance physical strength and maintain muscle and joint function; reduce fat accumulation and lower blood lipids; regulate emotions and relieve psychological stress. The elderly can exercise according to their own physical condition, choose the appropriate project, to achieve reasonable exercise. Advocate aerobic exercise (low-intensity, continuous, regular exercise), supplemented by static exercise and flexibility exercise, the elderly can choose exercise programs according to their ability to bear, physical condition, senior, high blood pressure, suffering from coronary heart disease is not suitable for high-intensity exercise. And to ensure regular, quantitative regular exercise every week, to avoid both interested in excessive exercise, do not want to move when you do not exercise. The amount of exercise for the elderly can be gradually increased from less to more, such as from 3 or 4 times a week, 10 to 15 minutes each time slowly to 5 to 7 times a week, 30 to 60 minutes each time. Exercise intensity is also appropriate to not cause discomfort, or according to the heart rate achieved after exercise to determine, exercise maximum heart rate to reach their own limit heart rate of 60-70% is appropriate, hypertensive patients do not exceed 60%. The calculation of individual limit heart rate is: 220 – age. At the same time, the elderly exercise is to pay extra attention to sports protection, to prevent accidents. Fourth, quit smoking and limit alcohol. The impact of smoking on human health is both widespread and serious, and the threat to life is great. So far, more than 25 kinds of tobacco-related diseases are known. Acute hazards caused by tobacco include hypoxia, rapid heartbeat, shortness of breath, impotence, infertility, and increased serum carbon dioxide concentration. The long-term harms of smoking are primarily illness and death, including heart attacks, strokes, lung cancer, and other cancers. Studies have shown that smoking increases the risk of coronary heart disease by 2.2 times, and the number of deaths from heart disease due to smoking is about 62,000 per year; smoking increases ischemic strokes by 96%; 30% of malignant tumors are due to smoking; 85% of lung cancers are related to smoking. Smoking not only harms the smoker himself, but also endangers indirect smokers with many of the same diseases, especially for infants and children, which can lead to acute death, respiratory diseases and middle ear diseases. Drinking a small amount of alcohol has certain health benefits, and a small amount of red wine can slow down atherosclerosis and prevent some heart diseases. However, drinking large amounts of alcohol can cause damage to the liver and can lead to cardiovascular and digestive disorders. Older people should drink low alcohol, such as beer and wine, and control the alcohol content of each meal to no more than 15 grams (equivalent to 50 to 100 milliliters of wine or a can of beer); and do not drink on an empty stomach or with carbonated beverages. In addition, people with liver disease, peptic ulcers, heart disease are not suitable for drinking alcohol. Fifth, mental balance. Healthy living should learn to control the stress of life, excessive mental stress can put the body in a state of stress, resulting in an accelerated heart rate, increased blood pressure, causing adverse effects on the body. The elderly should try to achieve emotional stability, do not handle things too aggressively, and do not be angry, not to mention depressed, to take the initiative to create happy scenes, laughing. Timely catharsis, to prevent liver qi depression. Sixth, regular medical checkups. Regular medical checkups can detect diseases early, get treatment early, increase the chances of cure and reduce the difficulty of treatment. Even if the elderly are not sick, through medical check-ups, you can also fully assess their health status, listen to the doctor’s advice, used to guide the future life health care, so that their lives more scientific and healthier.