The most likely cause of frequent out of breath is heart and lung problems, for example, coronary heart disease may cause shortness of breath, chest tightness, shortness of breath due to arrhythmia or panic, and some patients have heart failure, which may cause out of breath and difficulty in breathing. Pulmonary problems, such as bronchitis, emphysema, pulmonary heart disease, bronchiectasis, etc., may also cause shortness of breath, and this time, further examination should be performed to clarify the above causes. On the other hand, check the chest X-ray or lung CT, so that you can understand the situation of the lungs, whether the inability to breathe is caused by the lungs, identify the cause and then treat the symptoms with the right medicine, the symptoms of frequent inability to breathe can be gradually relieved.