Introduction: The occurrence and prevalence of cardiovascular diseases are closely related to socio-economic, ecological, cultural practices and lifestyle factors. Along with the acceleration of industrialization, urbanization and aging process, the increasing number of cardiovascular diseases in China has caused widespread concern, but, there are still so many people who know little about cardiovascular diseases. Most patients believe that the cold winter is the high incidence of cardiovascular disease, so many people relax their vigilance in the summer, in fact, this idea is wrong. It is not known that the hot summer season is most likely to cause accelerated heart rate, elevated blood pressure and myocardial hypoxia thus leading to various cardiovascular diseases such as myocardial infarction, angina pectoris and heart rate failure. Therefore, summer should also prevent the occurrence of cardiovascular diseases. Let’s take a look at the ABC’s of cardiovascular disease. 1, cardiovascular disease can be prevented, but when you get the disease, it is a lifelong disease. Some people think that patients with heart disease, put a stent, or a bridge, it is the same as cured, which is a completely wrong concept. Cardiovascular disease is a recurrent disease, meaning that no matter what treatment is done, the risk of disease recurrence is high compared to normal people. 2, cardiovascular disease originates in children and develops in adults. Domestic and foreign studies have found that atherosclerosis originates in childhood, and poor lifestyle is one of the culprits. Vascular lesions are progressive, starting in childhood and developing in adulthood. 3, some people will get cardiovascular disease even without hypertension, hyperlipidemia and other cardiovascular risk factors. One study found that 90% of myocardial infarction can be predicted by nine risk factors, but we often say that hypertension, hyperlipidemia, diabetes, obesity and smoking are only five factors, the other four are mental tension, eating less fruits and vegetables, less exercise and heavy alcohol consumption. Mental stress is a risk factor second only to hyperlipidemia. This does not count genetic factors and age and sex. 4, before the occurrence of myocardial infarction and sudden death, a significant proportion of people do not have typical manifestations of cardiovascular disease such as chest pain. Some people believe that coronary heart patients should have angina first, and then have myocardial infarction or sudden death. This is a misconception. Studies have found that 1 out of 10 first attacks of coronary heart disease manifest as sudden death, 4 as heart attack, and 5 as angina pectoris. That is to say, there are 2 people with a first coronary heart attack, there is 1 person manifested as sudden death or myocardial infarction. 5, emotions and cardiovascular have a great relationship. Many studies at home and abroad have found that people who are hot-tempered, prone to impatience, poor restraint, and like to compete are prone to cardiovascular disease. Studies have also found that pessimism, anger, paranoia, hostility, life stress, social isolation and lack of faith are also related to cardiovascular disease. 6. Having coronary artery stenosis does not necessarily require stenting. If suffering from acute myocardial infarction, having a stent can save lives. However, if there are no symptoms, no ischemia and other manifestations in the exercise test and other loading tests, or the degree of stenosis is not severe, stenting is not needed. With severe stenosis and heavy angina symptoms, doing stent can significantly reduce the symptoms, but cannot prevent another heart attack. 7.After suffering from cardiovascular disease, including stenting and bypass, the main reason for taking medicine is to prevent another disease attack. There are acute and slow coronary heart disease. Acute coronary heart disease includes sudden death, heart attack and unstable angina, etc. After taking medicine or putting stent or bypass, the disease is stabilized and becomes chronic coronary heart disease. The purpose of taking medication is mainly to prevent another disease attack. 8, smoking is a risk factor for cardiovascular disease, quit smoking can help prevent cardiovascular disease. This seems simple words, surprisingly so many people do not believe. Smoking is actually like gambling, see live long also smoked, in fact, are gambling gambling won, this is the smoking “winner”. The losers are out of the game early, naturally invisible. In the end is more winners, or losers? The same reasoning and gambling. 9, to learn to feel the pulse and count the heart rate. Many people will feel panic or meet others panic, this time you can measure your own heart rate and determine whether it is neat. If it is very irregular, you need to go to the hospital in time to see. 10, all people should prevent cardiovascular disease. Prevention of cardiovascular disease is not everyone has to take drugs, remember the following three words: control your mouth, open legs; zero smoking, drink more water; good mind, do not drink; sleep enough, but tired; happy to help people, the soul of beauty; family harmony, live a hundred years. 1, a reasonable diet, the right amount of water, quit smoking and limit alcohol Summer, people’s eating habits will change, on the one hand, eating barbecue, drinking beer opportunities are increasing, resulting in many people binge drinking, drinking excessive phenomenon; on the other hand, high summer temperatures, bacteria breeding and reproduction, food is easy to rot, unclean diet can easily cause acute gastrointestinal infections, which may directly or indirectly induce cardiovascular This may directly or indirectly trigger cardiovascular accidents. Therefore, not only should the diet be light in summer, but also not to overeat, not to drink excessively, and pay attention to dietary hygiene. In addition, smoking is the most dangerous and preventable factor of cardiovascular disease, so smokers must actively quit smoking. In the summer, also pay attention to the diversity of diet, nutrition should be comprehensive and balanced, to maintain the acid-base balance in the body. To control the total calorie intake, eat less animal fat and sweets, eat more lean meat, fish and other foods rich in unsaturated fatty acids, reduce the intake of sodium and salt, eat more fresh vegetables, fruits and soy products; half an hour before bedtime, wake up in the middle of the night and early morning after waking up, it is best to drink some plain water, which can reduce blood viscosity, prevent thrombosis and reduce the possibility of sudden cardiovascular and cerebrovascular disease. Patients with cardiovascular disease in the summer diet should be “juicy and colorful”, more yellow vegetables (such as: carrots, sweet potatoes, tomatoes, etc., rich in carotene, lycopene) or green leafy vegetables, can reduce atherosclerosis. A moderate intake of white food (e.g.: oat flour, oatmeal, etc.) and black food (black fungus, etc.) can effectively reduce blood viscosity and cholesterol. Cardiovascular and cerebrovascular patients need to drink water actively, at the right time and in the right amount every day to avoid the increase in blood concentration and morbidity due to failure to drink water in time and excessive water loss in the body. Ensure that you drink more than 1000 ml of water every day, and increase the amount of water you drink when you sweat a lot. 2, living in moderation, reduce out in the summer, the elderly should be the main quiet recuperation, avoid excessive exercise. Many elderly people are used to getting up early for morning exercise, but surveys show that the probability of cardiovascular disease is 70% to 80% at 6 to 10 am, so they should try to avoid exercising at this time. In the hot summer, the elderly with coronary heart disease had better schedule their exercise in the cooler afternoon or evening, avoid exercising in the hot sun, and the exercise time should not be too long, when the weather is hot, the air humidity in the “sauna days”, should try to reduce outdoor activities, more rest indoors, and nap for an hour to supplement the lack of sleep in the evening When you go out, wear light-colored, loose, breathable clothes, and wear a sun hat or umbrella. Because the rapid change in temperature will cause constant vasoconstriction and diastole, resulting in changes in blood pressure and blood circulation disorders, so avoid excessive temperature differences, adjust the indoor temperature so that it is within the human comfort range. 3, quit agitation, calm and quiet Investigations show that the highest proportion of acute myocardial infarction triggers emotional excitement. The hot sun, the summer heat, people are very easy to produce anxiety or by the outside world bad mood, resulting in emotional instability, excitement, out of control, triggering cardiovascular disease. Keeping a good state of mind and regulating emotions at all times is not only an important part of summer health, but also has a role in preventing cardiovascular diseases that cannot be replaced by drugs. 4, moderate exercise, maintain an optimistic mindset summer because of the hot weather, sweating easily after exercise, so exercise must be moderate, but not completely without exercise. Proper exercise is good for health, can increase muscle energy reserves, and has a certain role in improving heart function. The premise of moderate exercise is that there should be no symptoms of discomfort after exercise, the amount of exercise varies from person to person and can be increased gradually, generally more than 3 hours of exercise per week. Exercise in summer should be mainly aerobic exercise, such as walking, swimming, cycling, etc. Regular physical exercise can prevent and eliminate fatigue, fitness exercise is good for heart health. Local exercise of the body (such as dumbbells, pulling springs) is not very beneficial to the heart. In summer, patients with cardiovascular disease must maintain an optimistic attitude and mindset and establish healthy lifestyle behaviors. With the arrival of summer, it is important to stay up less and reduce nightlife, and a healthy body comes from good sleep. Elderly patients often have poor sleep quality in summer. If they sleep late at night, they should not get up too early in the morning and take a proper rest at noon to supplement the lack of sleep. Half an hour nap can make the blood pressure and heart rate curve a trough, the incidence of coronary heart disease reduced by 1/3. In addition, it is also important to have a good state of mind, emotional drastic changes are also a possible factor in triggering acute coronary events, high temperature mood for a long time boredom, easy to tension, produce depression, with the aggravation of symptoms, the probability of cardiovascular events such as sudden death, myocardial infarction will also gradually rise. Therefore, to maintain emotional stability and orderly living is one of the important factors to prevent the occurrence of cardiovascular disease. In addition, to prevent “emotional heatstroke”, emotional loss of control, excessive anger or tension and induced cardiovascular disease, pay special attention to “meditation” to maintain health, to do “quiet mind naturally cool”. 5, prevent heatstroke, carry drugs cardiovascular disease patients in outdoor activities should wear a sun hat and have enough water, when the weather is hot, indoor air conditioning can be turned on, but the temperature should not be too low, about 26 ℃ is appropriate. Because the sharp change in temperature will cause the human blood vessels to constantly contract and diastolic, leading to changes in blood pressure, causing blood circulation disorders and inducing myocardial infarction or stroke. At the same time, special attention should be paid to avoid just after returning from the hot outdoors, on the air conditioner cold air blowing straight for a long time, which is most likely to make the human vascular regulation disorder, and lead to cardiovascular patients accident, cardiac insufficiency of patients pay attention to prevent upper respiratory tract infection. In addition, patients with cardiovascular disease can carry medicines or nitroglycerin with them if they go out, so that they can take the medicine in time in case of an accident. Patients who feel uncomfortable outdoors can take a piece of nitroglycerin, if the symptoms are not relieved, five minutes later you can take a second piece, if the third time to take still no effect need to go to the hospital in a timely manner.