To promote lung function, the most fundamental thing is to enhance physical fitness in an all-round way and insist on exercise. Walking is the simplest and safest exercise. Weaker people can start walking slowly and walk 500- 1500m every day. At first, you can walk at your accustomed speed, then use a slightly faster speed, and then gradually increase the exercise time and distance after adapting. Exercise for about half an hour every day, or once every other day for more than an hour at a time.

In addition, going up and down stairs, jogging, Tai Ji Chuan and other sports are also beneficial to lung function. For people who live in cities and have no activity places, they can exercise by going up and down stairs. At first, you can only go up a flight of stairs, and then gradually increase the intensity according to your physical strength and respiratory function, intermittently, 1-3 times a day.

Respiratory function exercise should be carried out outdoors as much as possible, persistently and regularly to improve lung function. In addition, targeted exercise of respiratory muscles can enhance the muscle strength and endurance of respiratory muscles, improve lung function, increase breathing range, help reduce the influence of anatomical dead space, and improve alveolar ventilation and blood oxygen saturation. Respiratory muscle exercises include abdominal breathing, lip contraction breathing and total breathing gymnastics.