There are various reasons for the human body to feel unable to lift the air, the most common are the following: First, it may be cardiogenic chest tightness, mainly after prolonged exertion, chest, breathing difficulties and nighttime paroxysmal dyspnea, patients may be in the process of sleep, due to breathing difficulties and be suffocated awake, such patients as long as appropriate rest, adjust the work and rest time, or the application of coronary artery expansion drugs, the symptoms will The symptoms will be effectively relieved with proper rest, adjustment of rest time, or application of coronary artery dilating drugs. Second, pulmonary chest tightness is most likely due to lung-related diseases, the most common lung diseases are bronchitis, bronchial asthma, chronic obstructive pulmonary disease, pleural effusion, spontaneous pneumothorax, pulmonary fibrosis and other diseases. Whether it is cardiogenic chest tightness or pulmonary chest tightness, it is recommended to promptly go to the hospital for examination, clear diagnosis and corresponding targeted treatment.