2. Every spring, dry air makes dust fly, and respiratory tract infection is a common clinical disease in this season. Lung is the main respiratory organ of human body. To keep clean at all times, there is the simplest way in daily life: take a deep breath in a fresh air environment and cough actively. The combination of the two can achieve the effect of lung washing.

Protecting the lungs is the primary task of health care. The human body inhales oxygen through the lungs all the time and exhales carbon dioxide. Because of this, germs, microorganisms, dust, metal particles and toxic substances in waste gas in nature can easily enter the lungs through breathing and stimulate trachea, bronchus and lung tissue. These substances accumulate in lung tissue, which not only damages the lung, but also affects the health of other organs in the body through blood.

4. The so-called deep breathing is the combination of chest-abdomen breathing, which can expel residual gases and other metabolites from the lungs and inhale more fresh air to supply oxygen needed by various organs and improve or enhance organ functions.

The specific method is: choose a place with fresh air and do it 2-3 times a day. Thoracoabdominal deep breathing is similar to breathing exercises in yoga. When inhaling deeply, tuck in the abdomen first, then tuck in the chest. After reaching the limit, hold your breath for a few seconds and exhale gradually. When exhaling, contract the chest first, then the abdomen, and try to expel the gas from the lungs. Breathe in and out repeatedly for 3-5 minutes each time.

6. Many people know the benefits of deep breathing, but it is easily overlooked that coughing a few times when you are not sick is also a positive health care action, which can promote lung cleaning, enhance immunity and protect the respiratory tract from damage. Cough is a protective reflex action, which can remove foreign bodies or secretions in the respiratory tract, and these substances are one of the causes of lung diseases. The specific method is: after getting up, taking a lunch break or sleeping every day, take a deep breath in a place with fresh air, slowly raise your arms when taking a deep breath, and then cough actively, so that the airflow is ejected from your nose and mouth, and then your arms droop.

7. Repeat this for 8- 10 times, and try to discharge the secretions in the respiratory tract.