Singing is good for the lungs, the lungs play a respiratory role, it can both inhale oxygen and exhale carbon dioxide, the greater the activity of the lungs, the better the lung capacity relatively speaking. It is a very good way to exercise the control of the diaphragm and the strength of the respiratory muscles, so some patients with chronic lung disease, poor phlegm or declining lung function are encouraged to learn to sing or play some musical instruments, and ultimately to get the lungs moving. The less active the lung is, the worse its function will be, and the more active it is, the higher the lung function can be expanded, and the better the lung function can be improved. The more active the lungs are, the better it not only breathes, but it also helps the lungs clean themselves inside. For example, if we breathe in some dust or some toxic and harmful dust, or some odor to the lungs, if we breathe enough, it is also easy to help the phlegm to help expel it after wrapping these things with phlegm. If you normally, like people who are old and do not like to talk much, and then also do not like to move, the lungs will slowly become less and less active, not only the lung function will decline, and the lungs will be easy to deposit some garbage. So when the lungs are not functioning well, it is good to learn to sing properly.