Bad lung generally refers to lung deficiency, can play a supplementary role through exercise to supplement the lung gas, such as jogging, swimming, breathing exercises, etc., as follows: 1, jogging: should be gradual, the beginning of the slow walk, fast walking or jogging, do not start with the speed is very fast, but will consume gas and injure Jin, the speed should be slowly brought up to play the role of lung gas; 2, swimming: can be very effective exercise cardiorespiratory function, but Be aware that swimming pools are generally disinfected with chlorine-containing disinfectants, if allergic to chlorine-containing disinfectants, do not go swimming. When swimming, pay attention to keep warm, especially when swimming in winter; 3, breathing exercises: can exercise the breathing muscles; 4, other: the eight duanjin, five birds play, singing, etc. can also effectively exercise the heart and lung function.