As the most important part of the respiratory system, the main function of the lung is to deliver oxygen in the air to the capillaries and expel carbon dioxide from the blood, so as to maintain human life.
Lung damage, in addition to affecting the health of the respiratory tract, may also lead to colds, pneumonia and even lung cancer. Enough attention should be paid to the protection of lung. In addition to aerobic exercise, we should also avoid smoking, second-hand smoke, air pollution and other adverse stimuli.
Source: @nicolekayetattoo