Potassium contained in milk is an essential element to maintain the stability of human arterial wall under high blood pressure. Therefore, drinking milk every day can reduce the risk of stroke by 50% and greatly reduce the incidence of hypertension and heart disease; Milk can detoxify the human body and reduce the daily absorption of toxic elements such as lead and cadmium in food; Drinking milk every day can enhance the immune energy of human body and inhibit the proliferation and growth of tumor cells in vivo; Tyrosine contained in milk can stimulate the production of serotonin in large quantities and maintain human blood health; Milk is rich in iodine, lecithin and other nutrients, which is beneficial to brain development and can improve the operating efficiency of the brain system.