Is coughing at three or four in the morning a bad lung?

Cough at three or four in the morning may be caused by bad lungs, but it may also be caused by other reasons: first, cough at three or four in the morning may be caused by lung diseases. Pneumonia and other related diseases may cause cough at three or four in the morning. Second, cough at three or four in the morning may also be caused by other diseases. These include cough variant asthma, gastroesophageal reflux cough, and cardiac insufficiency, all of which can cause coughing symptoms at 3:00 a.m. These are not lung diseases.