Feeling unable to breathe in the lungs is a symptom medically called chest tightness, a subjective feeling of difficulty in breathing. Common causes, divided into the following points: The first point is cardiogenic. It is commonly seen in chest tightness after exertion, paroxysmal dyspnea at night, in patients with heart disease who develop pulmonary stasis and cardiac insufficiency. Chest tightness can also be a manifestation of angina pectoris when coronary artery disease and myocardial ischemia are present. The second point is of pulmonary origin. It is commonly seen in bronchial asthma, pleural effusion, spontaneous pneumothorax, and pulmonary fibrosis. The third point is neurofunctional. It is commonly seen in cardiovascular dysfunction. Patients feel that they have chest tightness and shortness of breath, subjective feeling of insufficient air, poor breathing, long sigh-like breathing, and feeling comfortable after breathing out; sometimes they also have palpitations, precordial pain, as well as weakness, dizziness, anxiety and other symptoms. Most of these patients are young women, with a wide range of symptoms, similar to coronary heart disease and angina, but all the test results are normal. This situation is not too worrying, it is related to psychological factors, adjust the psychological factors can be improved. How to treat this situation. First of all, you need to relax your mind, eliminate concerns and maintain a good mood, so as to enhance the vitality of brain cells and improve nerve function. Secondly, we must strengthen physical exercise, adhere to long-term exercise can enhance physical fitness, improve cardiovascular function, so that the autonomic regulation function is enhanced, which is conducive to the recovery of neurological function.