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.
Answer by jack Wise. Confidence votes 27.5K. The most populous country in Africa is Nigeria with an estimated population of 155,215,573 (2010) people. The largest country in Africa is Sudan and is not the most populated as vast areas of it are uninhabitable.