Chronic Obstructive Pulmonary Disease (COPD) is a progressive development of chronic inflammatory airway disease, secondary to chronic bronchitis and emphysema patients, often due to acute exacerbation of the condition caused by lung infections, which can lead to respiratory failure in severe cases, and long-term hypoxia can cause pulmonary heart disease, which seriously affects the quality of life of patients. Studies have shown that oxygen therapy can not only improve arterial oxygen saturation and hypoxia symptoms, but also increase the survival rate of patients and improve the quality of life. For example, give yourself more oxygen first Long-term oxygen therapy is to give COPD patients with one of the above symptoms daily oxygen, and continue for a longer period of time, at least up to 6 months or more, the standard long-term oxygen therapy should be 24 hours a day oxygen. Oxygen therapy is required for the following conditions 1. Arterial partial pressure of oxygen is less than 55mmHg or arterial oxygen saturation (SpO2) is less than 88%. 1. Arterial oxygen partial pressure of 55-59mmHg with erythrocytosis, pulmonary hypertension or right heart failure. 2. Hypoxemia at night (partial pressure of oxygen less than 60 mmHg) or during exercise. Oxygen therapy duration is currently agreed that at least 15 hours of daily oxygen intake, so that the partial pressure of arterial blood oxygen at least 60mmHg (8.0kpa), to maintain arterial oxygen saturation SaO2> 90%, in order to obtain better results of oxygen therapy. Patients with chronic obstructive pulmonary disease try to keep the breathing exercises in harmony with their own respiratory rate. If you feel dyspnea, please take a break, inhale oxygen, and continue after the symptoms of dyspnea are relieved. 1, raise your arms when you exhale, slowly raise one arm above your head and hold it, when you inhale, slowly place it in the waist flush position. Repeat for a few rounds, then switch to the other arm. (After a period of time, the weight can be increased appropriately) 2, stretch arms arms placed on both sides of the body. Exhale and raise your right arm to shoulder level, keeping your arm extended (like a flying bird). Inhale as the arm back to the sides of the body. Repeat with the other arm. 3. Bend your elbows around sitting or standing with your feet apart. Place your hands on your shoulders so that your elbows are at the same level as your shoulders. Bring your elbows forward, up, back, and out. Exhale as you move your elbows forward and upward, and inhale as you return to the starting position. 4. Bend your elbows and breathe sitting with your feet apart. Bring your elbows up to shoulder level and place your fingers in front of your chest. Inhale as you pull your elbows back and spread your fingertips apart. Exhale and return your fingertips to the starting position. 5: Bend your right arm sideways around your body so that your right hand rests on your left lower rib cage. Inhale slowly through your nose, bend your body to the left side and drop your left hand to the floor. Exhale through your mouth as you return to an upright position. Repeat the same movement with the left arm. Raise your right arm above your head, bend your right elbow, and move your right hand down to the back of your neck. Then, straighten your arm and return your hand up to the starting position. Repeat 3 times and then switch to the left arm to repeat the action. 7, sit with your knees and feet apart. Exhale and straighten one knee. Inhale and return to the starting position. 8: Lift your legs and sit with your feet apart. Exhale and lift one knee toward your shoulder. Inhale and return to the starting position. 9. Go up the steps and find a step with a handrail. Exhale as you go up the step and inhale as you go down. Repeat with the other leg.