Patients feeling out of breath are mainly considered to be caused by respiratory and heart diseases. In chronic obstructive pulmonary emphysema, interstitial pneumonia, idiopathic pulmonary fibrosis, and severe lung infections, it can affect pulmonary ventilation, pulmonary ventilation, and the phenomenon of breathlessness, and it can also affect the blood circulation in the lungs, making the oxygen content decrease. When there is cardiac insufficiency, the ejection of blood from the heart will be reduced, which will affect the blood circulation and make the brain have insufficient blood supply, which will also easily cause this symptom and need to improve the condition of oxygen deficiency. You can first go to the hospital for examination, according to the results of the examination under the guidance of the doctor with drug treatment, usually also need to pay attention to diet and rest, to improve the body’s resistance to prevent colds, so that you can also prevent the condition more and more serious.