Pulmonary rehab can help improve your breathing and increase your ability to exercise and participate in daily life. Pulmonary rehab programs also include education classes. These tell you about COPD and provide useful information on treatment, including drug action, side effects, and using an inhaler. They provide guidance on self-management of your COPD, including your diet, nutrition, and weight management, the importance of exercise and strategies for managing breathing problems including breathing retraining⁵.