COPD

COPD is characterized by chronic lung inflammation which leads to an obstructed airflow. The obstruction causes shortness of breath, coughing, and chest tightness, among other symptoms. Many of the triggers involve outdoor air pollution. As such, if someone wants to increase their lung health, it makes sense to move to cities with the cleanest air.

Chronic obstructive pulmonary disease is a major health concern in the U.S. This disease of the respiratory system causes restricted airflow and an abnormal inflammatory response, which can make something as simple as breathing extremely difficult.