People with bad lungs may experience chest tightness, insomnia, and may also have cough and sputum aggravation, while some patients with mild symptoms may not experience any special discomfort. 1. Chest tightness: bad lungs will affect the patient’s normal breathing, breathlessness and chest tightness and other phenomena, some patients will also be accompanied by dyspnea. 2. Insomnia: bad lungs will affect the supply of oxygen, and all organs of the body will be deprived of oxygen, which will lead to irritability, difficulty in falling asleep and insomnia during sleep. 3. Cough and sputum aggravation: People with bad lungs are prone to infection, resulting in increased sputum secretion and cough and sputum symptoms at night. In addition, patients with poor lungs may also be prone to night sweats, easy to wake up and other symptoms, the occurrence of the above symptoms are recommended to go to the hospital in a timely manner, to clarify the cause of the disease, and then follow the doctor’s instructions for treatment.