Patients with advanced lung cancer cough more strongly at night: First, the main reason is that the vagus nerve around the bronchus is more active and excited at night. After the vagus nerve is excited, the secretion of bronchus will increase dramatically, and at the same time, the stimulation of bronchial smooth muscle will be formed, and coughing will occur. In fact, not only advanced lung cancer, but also patients with ordinary bronchial dilatation will cough more at night. Secondly, because people lie down more at night and reduce their activities, the diaphragm and abdominal organs are relatively easy to be lifted up when lying down, resulting in the restriction of lung diastole, and the cough will be more severe than during the day. Before going to bed at night, you can use medications to reduce phlegm and cough, and you can also eat lung-supplementing foods during the day, such as almonds, white fungus, and lily of the valley, which may have some effect on the more severe dry cough at night.