After the blood flow of the main blood vessel (artery or vein) in a certain part of the body is blocked, the blood vessels of the original anastomotic branch of the part expand and form bypasses, so that the blood passes through these bypasses in a roundabout way and restores the circulation, this circulatory pathway is called “collateral circulation”, also called “compensatory circulation This circulatory pathway is called “collateral circulation”, also known as “compensatory circulation”. Inadequate development of the collateral circulation means that these bypasses are not sufficiently developed, which still affects the circulation and can cause various cardiovascular diseases. What are the prevention methods of the collateral circulation underdevelopment? 1, need to maintain an optimistic and happy mood. Long-term mental tension, anxiety, irritability, pessimism and other emotions, will make the balance of cortical excitation and inhibition process is out of balance, so you need to maintain a happy mood. 2, a reasonable diet, do not partial food, should not be excessive. To control high cholesterol, high fat food, eat more vegetarian food. At the same time, we should control the total calorie intake and limit weight gain. 3, life should be regular, avoid excessive tension. Keep enough sleep, cultivate a variety of interests; maintain emotional stability, avoid impatience, excitement or sullenness. 4, maintain appropriate physical exercise activities to enhance physical fitness. 5, drink more tea. According to statistics, the incidence of coronary heart disease without tea is 3.1%, occasional tea down to 2.3%, often drink tea (drink more than three years) only 1.4%. In addition, the exacerbation of coronary heart disease is related to insufficient blood supply to the coronary arteries and thrombosis. And tea polyphenols in the catechins and tea polyphenols in the decoction process of continuous oxidation of the formation of theophyllin, by animal in vitro experiments have suggested that there are significant anticoagulation, promote fibrinolysis, anti-thrombotic formation and other effects. 6, do not smoke, alcohol. Smoking can make the artery wall contraction, promote atherosclerosis; and alcohol abuse is easy to emotional, blood pressure rise.