Shortness of breath is by far the most common of emphysema symptoms. Most people with emphysema first notice something's wrong when they become winded during a previously routine activity. This might be climbing stairs or mowing the lawn. The shortness of breath in emphysema results from structural changes in the lungs.
The African city with the largest population is Lagos, Nigeria. In 2014, the city was estimated to have a population of 21 million people.
Luanda, Angola. Capital of Africaâs second largest oil producer, Luanda is home to the nationâs main seaport and administrative center. In the past decade, this city has achieved the most developments among any city in Africa.