If a 40-year-old woman with coronary heart disease can strengthen her daily health care, adhere to long-term medication and regular review, the patient can also live a long life without affecting her life expectancy. Coronary heart disease is a common clinical cardiovascular disease, if early detection and early treatment, early coronary angiography, clear coronary artery stenosis severity, choose a reasonable treatment plan, generally can be better control the disease. Patients with milder conditions can be treated conservatively with drugs, while those with severe stenosis can have intracoronary stenting to improve the stenosis, and those with more severe stenosis can choose coronary artery bypass surgery to improve the circulatory blood supply. Therefore, the life expectancy of patients with coronary artery disease is not uniformly determined, but depends on the specific condition of the patient. 40-year-old women have no significant age- or gender-specific life expectancy, and life expectancy is often related only to the degree of the condition. In addition, patients with coronary heart disease should also pay attention to active lifestyle improvement: quit smoking and drinking, ensure adequate sleep, low salt and low fat diet, moderate activity, regular medication, and regular follow-up medical checkups at the hospital.