The formation of lifestyle is a combination of congenital factors, personal experience, family environment and outlook on life, and also subject to social, economic, cultural, educational, ethnic and customary constraints, etc. People have long been aware of the close relationship between lifestyle and health, but the systematic study of the impact of lifestyle on health is not long, and the results show that lifestyle has an important impact on the promotion or impairment of health. Diseases caused by people’s lifestyles and non-healthy behaviors are called lifestyle diseases. Foreign studies show that deaths caused by poor lifestyles account for 48.9% of all causes of death, and domestic statistics also confirm that deaths caused by poor lifestyles account for 44.7% of all causes of death. It can be expected that lifestyle diseases will become a major threat to human health. Therefore, a correct understanding of the relationship between lifestyle and health will be of great benefit to our physical and mental health. First, eat more and move less and diabetes More than ten years people’s vegetable blue, the table than in the past more abundant, physical labor intensity also reduced a lot, but the popularization of nutrition knowledge lags behind, people’s awareness of physical exercise is not strong, the prevalence of diabetes in China in the past ten years rose 2.5 times, the total number of patients reached 15 million, especially in some of the faster economic development of rural areas, the prevalence rate rose more quickly, some even The problem of food and clothing has just been solved, and diabetes has followed, all because of changes in lifestyle, excessive calorie intake, unbalanced nutrition and reduced labor intensity. Second, smoking and tumors, heart disease International Cancer Institute through animal carcinogenic experiments and indeed clinical epidemiological investigation confirmed: smoke in the carcinogenic substances no less than 44, mainly N-nitrosodimethylamine, carbamate, benzo(a)pyrene, benzanthracene, etc., in addition to the existence of carcinogenic substances and synergistic carcinogenic substances. The relative risk of lung cancer death among smokers is 12.86 times that of non-smokers, and the relative risk of lung cancer death among those who smoke more than 25 cigarettes per day is 23.7 times that of non-smokers. Smoking can also double the relative risk of bladder cancer in men. Smoking has a wide mass base in China, despite the promotion of smoking cessation, cigarette sales have more than doubled over the past decade, becoming the world’s largest consumer of cigarettes, and more than 100,000 people die each year from lung cancer due to smoking. Smoking is also an important cause of coronary heart disease, smoking can cause an increase in blood lipid levels, changes in lipoprotein distribution, including total cholesterol and high-density lipoprotein cholesterol, increasing the risk of coronary heart disease, smoking causes coronary heart disease deaths accounted for half of the total number of smoking-related deaths. Smoking also increases the risk of hypertension, atherosclerosis, and stroke. Smoking is also likely to cause a range of pathologies from chronic bronchitis and emphysema to pulmonary heart disease, with smokers accounting for 16.15% of all deaths from pulmonary heart disease, compared to 11.10% for nonsmokers. Third, alcoholism and digestive system diseases, cardiovascular and cerebrovascular diseases Currently, some people in society drink alcohol as a social gift, a lubricant to contact feelings, a universal weapon for business and public relations, drinking is given special significance, alcoholism is also becoming more and more intense, accompanied by alcohol with the news of life has been in the press, accompanied by alcohol with the loss of health is unknown how many! Alcoholism on the body, the first to bear the brunt of the digestive tract, can cause ulcer disease, gastric bleeding, intestinal flaccidity, pancreatic calcification and other pathologies, the second victim is the liver, drink all the alcohol to be metabolized in the liver detoxification, excessive alcohol consumption will lead to toxic hepatitis, fatty liver and cirrhosis of the liver. Alcohol also damages brain cells, resulting in laxity, memory and judgment loss, mental decline, and even dementia. Long-term alcohol abuse can also cause tachycardia, iron deficiency anemia, atherosclerosis, hypertension and stroke. Driving after drinking is the main cause of car accidents. Fourth, improper diet and obesity, tumors and cardiovascular disease The main reason for the gradual increase in obese children in the city is the intake of excessive calories, research shows that: the proportion of obese population and per capita gross national product, fat and animal protein intake is directly proportional. The incidence and mortality rate of breast, prostate and colon cancers are significantly increased with more than 30% fat in the diet. Too fine food and too little crude fiber can easily cause colon cancer. Eating too fast can easily cause esophageal cancer because food is not fully chewed, which can easily bruise and burn the esophagus, while the carcinogenic substances in food escape the process of saliva extinction. Excessive intake of fat increases the incidence of atherosclerosis, hyperlipidemia and coronary heart disease. Excessive salt intake predisposes to hypertension and strokes. Bad lifestyle also drug use, unclean sexual behavior, homosexuality, gambling, excessive dieting and weight loss, etc., the impact on health is obvious, here we will not repeat. In conclusion, lifestyle has a lot to do with health, and economic development is constantly impacting our lives, bringing both positive and negative effects to our health. Although lifestyle is a social behavior, it can be controlled by individuals, and everyone should reflect on themselves: does my lifestyle harm or enhance health? So, what is a good lifestyle? 1.Physical exercise or outdoor activities at least twice a week. 2.A reasonable diet, balanced nutrition, regular meals and weight control. 3.No smoking, no alcohol, no drugs and no substance abuse. 4.Pay attention to safe behavior and prevent accidents. 5, work and rest, sleep enough. 6.Socialize well and have a wide range of interests. 7.Regular medical checkups, early treatment of diseases. 8.Avoid contact with pollution and dangerous environment. 9.Resist tempting pastimes. 10, healthy sex life.