Zhong Nanshan's health preserving concept is that there are five cornerstones of human health, namely, reasonable diet, moderate exercise, smoking cessation and alcohol restriction, psychological balance, early prevention and early treatment. Among them, psychological balance is the most important. Psychological balance-"The best doctor is himself", said Professor Zhong Nanshan. The first essence of health preservation is psychological balance, which is also the most difficult point. Scientific research shows that normal people produce 3000 cancer cells every day, and at the same time, there are many "natural killer cells" in our body to deal with cancer cells, so as to kill them in time when they are in the bud. The combat effectiveness of these "anti-cancer warriors" is closely related to their emotions. Optimism, self-confidence and other good emotions can stimulate their combat effectiveness. When people are trapped by anxiety, fear, greed, cowardice, jealousy, anger and other negative emotions, the role of these "natural killer cells" drops by more than 20%, and the ability to resist tumor cells is greatly reduced. So we must learn to adjust our mentality at ordinary times. If we want to relax physically and mentally, we can enjoy three things: contentment, enjoying ourselves and helping others. To achieve psychological balance, we must first have a clear goal in life and pursue it persistently. The survey shows that people with clear goals in life have a higher chance of longevity. But this goal should not be so demanding as to sacrifice one's health. People should learn to be contented. When talking about specific balance skills, Professor Zhong quoted an old saying: "Misfortune comes from the mouth, and happiness comes from the mouth." Is to find positive factors from failures and setbacks, so as to achieve a new psychological balance. Reasonable diet-"If you want to be healthy, you must be hungry and cold." Zhong Nanshan said that many white-collar workers now "don't eat breakfast, lunch is just enough, and dinner is full." This runs counter to healthy eating habits. Therefore, Professor Zhong hopes that white-collar workers will adjust their diet reasonably and don't make jokes about their health. Another thing about a reasonable diet is not to overeat. It is most appropriate to eat until seven or eight points are full. This is the experience of the ancient and modern birthday girl. Nowadays, people have more and more incomes, higher living standards and better food, but their health is getting worse and worse, and diseases such as hypertension, diabetes and hyperlipidemia also follow. To prevent and solve these diseases, a healthy diet is particularly important. Proper exercise-life lies in exercise Professor Zhong pointed out that it is not enough to do regular exercise such as playing ball, walking and swimming at ordinary times, but also to do some physical exercise in four aspects: strength, agility, endurance and flexibility. Proper exercise can delay the aging process of human body, such as muscle relaxation and bone loosening. At the same time, he reminded people that it is not appropriate to exercise excessively, and long-term adherence to proper aerobic exercise is best for the body. Early prevention and early treatment-"minor injuries should be on the line of fire", and common diseases such as hyperlipidemia, hypertension and fatty liver should be found and treated early. If you feel unwell, you must check in time to nip the patient in the bud. High-risk groups such as smoking 10 years or more should be more vigilant. Besides, people who are overtired are chasing death. When it comes to the untimely deaths of Li Yuanyuan, Yang Mai, Cong Fei, Gao Xiumin and Fu Biao, Zhong Nanshan's tone is full of regret. He analyzed that today's young and middle-aged people often think that they are young and in good health, so they despise health and pay little attention to physical abnormalities. They often go to the hospital when the problem is serious. He opposed the propaganda that elites "can't get off the line of fire with minor injuries" and stressed that elites are valuable social wealth and should take care of themselves. He suggested that everyone should prevent and treat health problems as early as possible so as not to leave regrets. "Work is like a ball. If it falls, it will rebound. Don't care too much. And health is like a hollow glass ball. Once it is broken, it can never be recovered. " "The health of the body ultimately depends on healthy living habits and mentality, which depends on you." Professor Zhong told a personal experience. In 2003, Professor Zhong was diagnosed with a small area of myocardial infarction, and his mood was once very low. When his cousin heard about it, he congratulated him: "First, you didn't get sick on the plane, so make a diagnosis in time;" Second, this is a small-scale myocardial infarction, which will teach you a lesson and remind you to pay attention to your health in the future. Do you think I should celebrate you? After listening to this, Professor Zhong thought it was a fact. His mood eased and his condition improved rapidly. In addition, Professor Zhong believes that "health preservation is the first, and benevolent people live long". Professor Zhong finally suggested that white-collar elites should be good at cultivating their good living habits, cherish life and health, and combine moderation and rest to finally realize the transformation from "ordinary talents" to "handsome talents". Calcium is the regulator of human life activities and the source of human life. It plays an important role in maintaining the normal physiological functions of human circulation, respiration, nerves, endocrine, digestion, blood, muscles, bones, urine, immunity and other systems. No system function of human body has nothing to do with calcium, and calcium metabolic balance plays a vital role in maintaining life and health. Milk not only contains high calcium content, but also lactic acid can promote the absorption of calcium, which is the best natural calcium source. In addition, dairy products such as cheese and yogurt are also rich in calcium and should be eaten regularly. Dried seaweed is rich in nutrients and contains trace elements such as calcium and phosphorus, and the content of protein is also high. Dry rice and other seafood are good sources of calcium. The nutritional components and dietotherapy value of rape are the best among vegetables. Rich in calcium and iron, eating rape often has the functions of clearing blood, lowering blood pressure, improving eyesight, clearing heat and detoxifying. Black sesame is a good source of calcium supplement, and its health care effect is several times that of white sesame. People who don't like milk can eat three spoonfuls of black sesame seeds a day instead. In addition, sesame paste contains high calcium content. Soybean is high in protein and calcium, rich in lysine and iron, and easy to be absorbed and utilized by human body. Other bean products are also good calcium supplements. For example, the calcium content of 150g tofu is as high as 500mg. Broccoli is rich in calcium and low in oxalic acid, which is a good source of calcium. In addition, it belongs to alkaline food and plays an important role in maintaining acid-base balance in the body. Celery is nutritious and contains protein, vitamins, minerals and indispensable dietary fiber. Because celery has high calcium and phosphorus content, it has certain sedative and vascular protection effects. Porphyra is rich in iodine, calcium, protein, vitamin A, vitamin B and other minerals. Regular consumption can remove cholesterol accumulated on the wall of blood vessels, which has a certain effect on softening blood vessels and preventing arteriosclerosis.