The symptoms of stenocardia are mainly chest tightness and shortness of breath, and anterior heart pain will appear when it continues to develop. Some patients do not have the above symptoms, but only have myocardial ischemia during occasional physical examinations. Chest tightness and shortness of breath are caused by narrowing of blood vessel lumen, which is related to dyslipidemia, and frequent eating of fatty food will increase blood lipid, and plaque will be formed in the inner wall of blood vessel over time. When the plaque gradually increases, it will lead to narrowing of the lumen and the myocardium will become ischemic, resulting in chest tightness and shortness of breath, and chest pain will occur when the myocardium ischemia is strong. There are many causes of these symptoms, such as high blood pressure, diabetes, long-term smoking and alcohol consumption, and people who are obese or sedentary are also at risk of developing the disease. Early intervention of narrow heart disease can be reversed, such as eating less fatty foods, taking simvastatin to lower blood lipids if blood lipids are elevated, or eating raw hawthorn to activate blood circulation and lower blood lipids.