Improving myocardial function can regulate the acid-base balance of human body. Such as hawthorn. Hawthorn can prevent and treat cardiovascular diseases, and has the functions of dilating blood vessels, strengthening heart, increasing coronary blood flow, improving heart vitality, exciting central nervous system, lowering blood pressure and cholesterol, softening blood vessels, diuresis and sedation. Has the effects of preventing arteriosclerosis, preventing aging and resisting cancer.