You can increase your lung capacity through deep breathing, exercise breathing, adhering to appropriate physical exercise, blowing up balloons and other methods. 1. Deep breathing method: first slowly inhale through the nostrils, during the inhalation process, the abdomen will slowly bulge. Then continue to inhale until you feel that you can’t inhale. Finally, hold your breath until you feel you can’t hold it and then slowly exhale, the time you hold your breath can be slowly increased with practice. 2. Exercise breathing method: in walking or jogging, take the initiative to increase the amount of breathing, slow inhalation and quick exhalation, slow inhalation with the inhalation of the thorax slowly expanding, and exhaling to be fast. 3. Adhere to participate in appropriate physical exercise: such as running and swimming, long exercise can increase lung capacity. Exercise should be in moderation to avoid muscle and tendon strains. 4. Blow up the balloon: first take a deep breath, then start to blow up the balloon, it is best to blow up the balloon at one time or blow up to the exhaustion, do not change the air in the middle. Continuously blowing multiple balloons. However, it is not applicable to patients with severe pulmonary herpes, so as not to cause pulmonary herpes rupture, causing spontaneous pneumothorax. In addition, abdominal breathing, chest-expanding exercises, stretching exercises, etc. can increase lung capacity, and persistent practice will help significantly in the increase of lung capacity. It is recommended that they be carried out reasonably under the guidance of professionals.