You will be very healthy.

The lung is a very important organ of the body, and breathing depends on it. Of course, many people smoke now, not only boys but also many girls. And smoking is getting younger and younger, and many young people, including the school party, have also learned to smoke. I think it's handsome or something, but you should also know that smoking is really harmful to your health. Especially for the lungs, it may cause lung cancer and so on.

Then let's talk about everyone's lung health. What physical characteristics indicate that the lungs are healthy?

The first is that you can hold your breath. The specific method is to hold your breath after inhaling deeply. If you can hold your breath for 30 seconds, it means that your heart and lung function is very good. If you can hold your breath for more than 20 seconds, it's also good.

The second test method is vital capacity. It would be great if there was a computer test. If not, you can also use the following methods. Light a match and blow as hard as you can. If the match leaves the mouth 15 cm, it means that there is something wrong with lung function. If it is a little more serious, it can't be blown out at a distance of 5 cm, which means that the lung function is really poor, and it may be a patient with emphysema.

Another way is to climb stairs, which is a relatively simple daily method. You can climb to the third floor at a leisurely speed. If you don't feel obvious shortness of breath and chest tightness, it means that the cardiopulmonary function is normal. You don't have to worry about your lungs.

Next, I will tell you some ways to exercise your lungs.

The first is abdominal breathing. When walking or resting, you can take a breath slowly according to your health, then shrink your lips and blow your lips to exhale. If you insist on this action, you can obviously improve your lung function.