COPD, or chronic obstructive pulmonary disease, occurs when air flow to the lungs is limited by several factors including loss of air sac and airway elasticity, inflamed airways, and destroyed walls between air sacs. This disease is progressive, meaning it gets worse overtime. In the United States, the two main conditions of COPD are emphysema and chronic bronchitis, with varying severity among patients. COPD is the 4^th leading cause of death in the United States and affects over 16 million people. Overtime, it can lead to limitations in daily activities like walking and taking care of yourself. There is currently no cure to COPD, and damage to the lungs cannot be reversed, but there are lifestyle changes and treatments that can slow the progress and reduce symptoms of the disease.