Causes. 1  Asthma. 2  Pregnancy. 3  Deconditioning. 4  Hiatal hernia. 5  Pneumothorax. 6  Cardiac failure. 7  Pulmonary edema. 8  Sarcoidosis. 9  Interstitial lung diseases.
Mars Hill, North Carolina. Mars Hill is a town in Madison County, North Carolina, United States. The population was 1,869 at the 2010 U.S. Census. It is the home of Mars Hill University, the name of which was inspired by Acts 17:22. The town is located 15 miles (24 km) due north of Asheville, western North Carolina's largest city.
Chapel Hill, North Carolina. Chapel Hill is a city in Orange County, North Carolina (with some eastern portions in Durham County), and the home of the University of North Carolina at Chapel Hill and UNC Health Care. The population was 57,233 at the 2010 census; Chapel Hill is the 15th-largest city in North Carolina.