The lungs, like air conditioners, need timely maintenance. According to the physiological characteristics of the lung, you can choose the following maintenance methods: supplementing qi and nourishing the lung; Lung governs qi and breath. Clear gas and turbid gas exchange in the lung, and the quality of inhaled gas has a great influence on the function of the lung. If you want to keep your lungs fresh, you must first quit smoking, avoid the harm of second-hand smoke, and don't stay in a dirty place for a long time. Conditional friends can often go to places with lush vegetation and fresh air, do exercise, take a deep breath, and expel the polluted air from the body through deliberate deep breathing. Water nourishes lung: lung is an open system, from nasal cavity to trachea to lung, which constitutes the channel of qi. Water in the lungs can be lost with the discharge of qi. Dry air is more likely to take away water, causing damage to lung mucosa and respiratory tract. This is what Chinese medicine says, dryness and evil are easy to hurt the lungs. Therefore, timely hydration is an important measure for lung maintenance. Food nourishes the lungs: Sugarcane, autumn pear, lily, honey, radish, black sesame, soybean milk, tofu, walnuts, pine nuts and other foods all have the function of nourishing and moistening the lungs, and can nourish the lungs through diet. Friends with dry nose and mouth skin can eat more of the above foods, or they can make medicated diets according to their preferences. Such as lily honey soup: wash with 50 grams of fresh lily and decoct with 30 grams of honey once a day, which can moisten the lungs and relieve cough, moisten the intestines and relax the bowels; Stewed Pear in Chuanbei: 2 fresh pears, 5g of Chuanbei, ground and stewed with water, which can nourish yin and clear heat, resolve phlegm and relieve cough; Lily millet porridge: 5 grams of lily and 0/00 grams of millet/kloc, cooked once a day, can warm and replenish lung qi. Medicine nourishing lung: Chinese medicines such as Radix Glehniae, Radix Glehniae, Radix Ophiopogonis, Fructus Schisandrae Chinensis, Cordyceps, Bird's Nest, etc. Both have the function of nourishing the lungs and can be selected under the guidance of a doctor. Nourish the lungs with laughter: the lungs are full of sadness, and sad emotions are easy to damage the lungs. People with lung disease are also easy to be sad. Laughing for the heart can overcome the sadness of lung gold. Smiling more can reduce your sadness. Laughter is also a kind of fitness exercise, which can enlarge the chest, increase vital capacity and stretch the chest muscles. This helps to spread lung qi, which is beneficial to the rise and fall of human qi. Laughing every day can relieve fatigue, relieve depression, broaden the chest and regulate qi, restore physical strength and stimulate appetite. Exercise nourishes lungs: Proper exercise can improve lung function. According to your own conditions, you can choose appropriate sports, such as jogging, mountain climbing, kicking shuttlecock, skipping rope, practicing martial arts and sword dancing. To stimulate and exercise the body's ability to keep out the cold and prevent colds.