Cardiovascular disease has become a major “killer” threatening the lives of middle-aged and elderly people, and has posed a serious threat to human life, so it is imperative to take effective preventive measures. In fact, small methods in daily life can protect the heart. Diet gatekeeper 1, drink green tea: drink 1 cup of green tea every day is very beneficial to the heart. Green tea is rich in catechuic acid, can enhance the flexibility and elasticity of blood vessels, can effectively reduce cholesterol and vascular sclerosis. 2, eat walnuts: eat 3 walnuts a day can make cholesterol drop, the possibility of heart disease is greatly reduced. 3, eat apples: apples contain a large number of antioxidants, can timely remove the body’s metabolic “garbage” – oxygen free radicals. 4, eat less salt: reduce salt intake by 1/3, may reduce the risk of heart disease by 40%. Salt intake is controlled at about 5 grams a day, but also to prevent hyponatremia. To “quiet” to feed the movement 5, nap 30 minutes: adhere to the daily nap 30 minutes, can reduce the incidence of heart disease by 30%. Napping to protect heart health, but should not exceed 1 hour, the posture should be taken head high feet low position. 6, 30 minutes of sunshine: sunlight can promote human metabolism, reduce blood cholesterol levels, can be supplemented with more calcium, sunlight can help people to relieve negative emotions, uplift the spirit, thereby protecting the heart. 7, exercise 15 minutes: adhere to at least 15 minutes of physical exercise every day, such as walking, qigong, taijiquan, can make the heart muscle strong, good cardiorespiratory function. 8, calm and not angry: often remain calm, not angry, will make the body temperature relatively lower, so that the heart beat more stable.