1. Adjust your diet. With the gradual growth of age, the physical strength of the body may become weak. It is necessary to adjust the diet to ensure that the diet is diversified and not too single. You can't just eat one kind of food, eat more fresh fruits and green vegetables, or add lean meat, milk, eggs or soy products appropriately to ensure balanced and comprehensive nutrition. You also need to eat less and eat more, chew slowly, try not to overeat, and choose light food. For the elderly, they may not like sports, which leads to their weaker constitution. Therefore, they should exercise properly. Exercise can accelerate the body's blood circulation and improve physical fitness.

Under normal circumstances, if there is qi deficiency, people will choose dietotherapy to restore health. In addition, compared with men, women's bodies are more prone to qi deficiency, which is mainly caused by physiological structure, so women should take good care of their bodies in daily life. Old people can go out to play Tai Ji Chuan, take a walk and do stretching exercises. In the absence of smog, and ensure that they bask in the sun for more than 20 minutes every day. In winter, you might as well use some tips to keep fit indoors. Pay attention to having a full breakfast, a good lunch and a moderate dinner. Because of the physiological particularity, the metabolism of the elderly slows down and eats less at a time. They can eat mainly three meals, with 2 ~ 3 additional meals, and a small amount of meals.

3. Increase the total blood volume. Oxygen is supplied to all parts of the body with blood, and the increase of blood volume will correspondingly enhance the oxygen delivery capacity. Enhance lung function. Aerobic metabolism accelerates the breathing of exercisers, thus improving vital capacity and oxygen absorption capacity. Improve heart function and prevent heart disease. Aerobic exercise strengthens the myocardium, discharges more blood at a time, and increases the proportion of high-density lipoprotein in the blood that can prevent coronary heart disease. Increase bone density and prevent osteoporosis. With the increase of age, the calcium in human bones gradually decreases, so the elderly are prone to fractures. Aerobic exercise can effectively prevent calcium loss.