Due to airway obstruction, patients suffering from “chronic bronchial disease” often experience difficulty in breathing. Therefore, patients need to actively engage in lung function exercises to effectively reduce the discomfort. Among them, abdominal whistling and lip reduction whistling can strengthen the muscle strength and endurance of the thoracic and diaphragmatic whistling muscles, and easy to do, can be done at home at any time. Abdominal whistle exercise Abdominal whistle exercise method is: the patient to take a standing, sitting or lying position, the initial learning to lying position is easy to master. Two knees half flexed (or under the knee pillow), so that the abdomen relaxed. Both hands hang naturally against the abdomen; when inhaling slowly through the nose, the diaphragm descends to the greatest extent, the abdominal muscles relax, and the hands feel the abdomen lift up to the end; when whistling, the abdominal muscles contract, the hands assist the abdomen to fall, the diaphragm relaxes, the diaphragm rises with the increase in intra-abdominal pressure, and try to whistle all the air to increase the whistling tidal volume. At the same time can be combined with lip reduction whistling method, daily exercise, from short to long, and gradually get used to the smooth and slow abdominal whistling. Training abdominal whistling helps to reduce whistling frequency, increase tidal volume, alveolar ventilation, reduce the amount of functional residual air, and enhance the ability to cough, cough sputum, relieve symptoms of dyspnea, and improve ventilation. Lip reduction whistling exercise Lip reduction whistling method is: the patient whistles with the abdomen sunken, the chest tilted forward, the lips narrowed (whistle-like), try to whistle out the air to prolong the whistling time, while the oral pressure increases, transmitted to the terminal airway, to avoid premature closure of small airways, improve the effective alveolar ventilation. Inhalation and whistling time ratio: 1:2 or 1:3, try to inhale deeply and whistle slowly, 7-8 times per minute, 10-20 minutes each time, 2 times a day training.