Coronary heart disease is one of the most important diseases that jeopardize human health. At present, the incidence of coronary heart disease is getting higher and higher, and is increasingly presenting a “youthful” trend, understand the causes of coronary heart disease, from a young age or even when you are a child to begin to cultivate this preventive consciousness, to control the incidence of coronary heart disease as well as the youth is very important and meaningful. The following are the five major culprits of coronary heart disease. First, blood pressure for a long time in a relatively high state A large number of studies have shown that high blood pressure can damage the arterial endothelium and cause atherosclerosis, and accelerate the process of atherosclerosis. Long-term fluctuations in blood pressure or long-term in a relatively high state can easily cause coronary artery disease. When coronary lesions exist, elevated blood pressure may trigger atherosclerotic plaque rupture, thrombus formation and blockage of coronary arteries, leading to acute myocardial infarction. The higher the blood pressure level, the heavier the degree of atherosclerosis, the higher the risk of death from coronary heart disease. B. Dyslipidemia Dyslipidemia refers to the elevation of total cholesterol, LDL cholesterol and triglyceride, as well as the reduction of HDL cholesterol, regardless of which abnormality is accompanied by increased prevalence of coronary heart disease and mortality. At present, many people have a misunderstanding of the “normal value of blood lipids”. In fact, in the “normal” cholesterol level of a very large number of people or coronary heart disease has been in the occurrence of coronary heart disease, recurrence or death of high-risk state, doctors and patients should be total cholesterol less than 5.7mmol / l of different situations lead to enough attention. Third, diabetes mellitus diabetes increases the prevalence of coronary heart disease, because diabetes promotes atherosclerosis caused by. Diabetes mellitus when the prolonged presence of high blood sugar, leading to a variety of tissues, especially the eyes, kidneys, heart, blood vessels, nerves, chronic damage, dysfunction. Fourth, obesity There has been prospective data suggesting that centripetal obese people have a greater risk of morbidity. Some studies have shown that the incidence of angina and sudden death in obese people is 4 times higher than normal. This also shows that obesity and coronary heart disease have a great relationship. Fat distribution in the body and the degree of coronary artery stenosis is positively correlated, the more obese the degree of coronary artery stenosis is more powerful, the fat in the blood can be formed in the coronary artery thrombus, resulting in myocardial infarction. Experts suggest that the prevention of cardiovascular disease from the change in body shape, male waist circumference of not more than 85 centimeters, female waist circumference of not more than 80 centimeters is more appropriate. Fifth, smoking Smoking is the most toxic to the cardiovascular system. Nicotine in tobacco can make the heart rate faster, myocardial oxygen demand increases, peripheral blood vessels and coronary artery contraction, and make the blood pressure rise. In addition, it can also increase the concentration of carbon monoxide in the blood, promote and aggravate atherosclerosis, reduce HDL cholesterol, accelerate the onset of coronary heart disease. Usually pay attention to control blood pressure, blood fat, blood sugar, especially the elderly, need to adhere to medication control. Nowadays, living conditions are getting better and better, parents should pay particular attention to, let the child develop good and healthy living and eating habits, do not let the child is too fat, prevention of cardiovascular disease, away from coronary heart disease, from a young age.