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.
Serving as the capital from 1933 until 1983, Abidjan is the biggest and most important city of Cote d'Ivoire. With a population of around 4,000,000 people, it is the second largest city in West Africa after Lagos and has historically been the economic power base of the region.