Chronic Obstructive Pulmonary Disease is a progressive disease that makes breathing difficult. When having this disease, lung damage is produced. The disease worsens over time, although it is not treated, it can be slowed down. This is mainly caused by smoking, chemical fume, dust, and air pollution. Although there are many causes to this disease, smoking is the most common. It happens to over 12 million Americans and the risk factors can be environmental or genetics. COPD is largely preventable and rare in lifelong non-smokers with passive exposure. What this disease mainly does is block or gives airway limitations. It is associated with an abnormal inflammatory response to the lungs. The two types of COPD are bronchitis and emphysema. Both
