Chest tightness and shortness of breath old want to take a deep breath may be some physiological phenomena, may also be the manifestation of certain diseases, such as wheezing bronchitis, myocarditis, etc. should be timely to find out the cause of the disease. 1. Physiological factors: If you stay in a long time in a closed, air-circulation environment, will seriously affect the human respiratory system, there may be shortness of breath and chest tightness of the symptoms; in addition, if the patient mental stress, sleep deprivation or poor quality of sleep is also prone to shortness of breath and chest tightness of the symptoms of wanting to breathe. The above is a normal physiological phenomenon, timely ventilation, ensure adequate sleep, appropriate exercise to develop good habits, without medication can also be relieved. 2. Pathologic factors: (1) Wheezing bronchitis: due to bacterial infection or allergy caused by wheezing bronchitis, manifested as prolonged expiratory time, accompanied by wheezing, commonly found in young children. Commonly used penicillin or cephalosporin antibiotics, such as cephradine granules cephalosporin benzyl granules treatment, through the inhibition of the formation of bacterial cell wall to alleviate the condition. (2) Myocarditis: caused by bacterial infection or autoimmune factors, myocarditis can be triggered by acute infection or overexertion, often manifested as weakness, palpitations, chest tightness and shortness of breath with chest pain and other symptoms, and in severe cases, fainting or even sudden death may occur. Creatine phosphate, coenzyme Q and other drugs can be used to improve the patient’s myocardial metabolic function, relieve chest tightness and shortness of breath and other symptoms. Patients who have chest tightness and shortness of breath and always want to take a deep breath, should consult a doctor in a timely manner to identify the cause of the disease, standardized treatment under the guidance of the doctor, follow the doctor’s instructions, and develop good daily habits, appropriate exercise, pay attention to ventilation, in order to avoid adverse reactions.