To improve blood supply to the heart, it is important to identify the specific causes of low blood supply to the heart and insufficient blood supply to the heart, and the most fundamental solution to improve blood supply to the heart is to treat according to the cause of the disease. For example, if the cause of cardiac insufficiency is hypothyroidism, thyroid hormone supplementation, such as eugenol, can improve hypothyroidism and increase the blood supply to the heart. For example, if the patient’s insufficient blood supply is caused by coronary artery disease and unstable angina pectoris, the patient needs to actively treat coronary artery disease, such as taking antiplatelet aggregation drugs, statin lipid-lowering drugs, or nitrate drugs, such as isosorbide mononitrate, nitroglycerin, and so on, and also can take some traditional Chinese medicines to improve the ischemia of the heart, for example, Compound Dangshen Dropping Pill, Ginseng Pine Nourishing Heart Capsules, all of these medicines can improve the ischemia of the heart, and improve the blood supply of the heart. All of these drugs can improve the blood supply to the heart. Regardless of the means to improve the blood supply to the heart, it is important to identify the primary cause of insufficient blood supply to the heart and take the treatment for the cause.