Sudden death is a word that you must understand 1. 500,000 people die suddenly every year due to cardiac reasons in China, but the rescue success rate is less than 1%; 2. Sudden death is increasingly likely to appear in young people; 3. Excessive fatigue is prone to chronic fatigue syndrome, the human body manifests itself as a metabolic disorders, nervous system regulatory dysfunction, decreased immunity, and in severe cases may even die suddenly. Second, people prone to sudden death 1. depression: depression and anxiety accelerate the formation of cardiovascular disease, is an independent threat factor of cardiovascular disease, especially myocardial infarction. Cardiovascular disease accompanied by anxiety and depression, becoming an important factor in sudden death; 2. snoring: snoring is a sign of sleep apnea syndrome, if the “sleep apnea” time more than 120 seconds at a time, it is likely that sudden death in sleep; 3. In a dysfunctional state; meals, rest irregularities can cause low sugar and potassium, electrolyte disorders, resulting in cardiac arrhythmia, which is an important cause of sudden cardiac death; 4. In addition, staying up late for a long time will form blood clots, blocking blood vessels; 5. Stressful life: can lead to hypertension, coronary heart disease, etc., and can increase the risk of arrhythmia, vascular spasm, and even induce sudden death; 6. Obese people account for almost all of the cardiovascular disease risk factors. And fat people are prone to congestive heart failure, combined with coronary heart disease is prone to myocardial infarction and sudden death; 7. sedentary in front of the computer: long-term Internet is a static action, blood viscosity is high, the lower extremities may form deep vein thrombosis, the movement of the thrombus off, may cause pulmonary infarction, serious may lead to sudden death; 8. Exactly what can make the heart rate increase, blood pressure rise, is to pull the trigger on a heart attack, long-term alcohol consumption can also lead to heart failure and other diseases. Third, there are signs before the onset of sudden death Signs 1: Pain In contrast, the pain response is the most easily perceived sign of the onset of sudden death. Be alert when you feel a sharp, constricting, crushing pain in the chest and feel breathless. Signs 2: Potential causes In addition to pain, it is important to be alert to potential causes that may lead to sudden death. For example, if there is a history of a medical condition that predisposes to the formation of blood clots. A patient with a fracture, for example, who has been restricted from exercise for a period of time is vulnerable to venous thrombosis, which, if it falls out, can lead to pulmonary infarction. Sign 3: Breath-holding, obvious cyanosis, purple lips and decreased blood oxygen If the nature of work is sedentary or standing for a long period of time and blood circulation is poor, when the condition strikes, if there is breath-holding, obvious cyanosis, purple lips and decreased blood oxygen in addition to pain, it is highly suspected that it may be a pulmonary embolism. Sign 4: Severe elevation of blood pressure For patients with aortic coarctation, the onset sign is severe pain, and the pain will be accompanied by severe elevation of blood pressure. Sign 5: Chest pain Coronary heart disease has the highest rate of sudden death. The typical manifestation of coronary heart disease is chest pain, which usually occurs behind the sternum, the whole boundary is not very clear, it will be appropriately large (about the same area as the palm of the hand), or it is not clear where the pain is, mainly the feeling of boring pain. The stabbing pain of needles or the feeling of “pressing pain” is often not related to the heart. Sudden death is seemingly unpreventable, but it is possible to reduce the chance of sudden death by making adjustments in lifestyle and emotions, developing a good lifestyle, and keeping your body healthy. 1. get enough sleep every day; 2. eat a light, low-fat diet; 3. quit smoking and alcohol; 4. exercise in moderation to improve physical health and develop cardiopulmonary function; 5. maintain a good state of mind, reduce stress and avoid anxiety and depression; 6. pay attention to the development of personal interests, so that when stress comes, it can be offset by hobbies.