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.
Lagos /ËleÉªÉ¡És/ (Yoruba: ÃkÃ³) is a city in the Nigerian state of Lagos. The city, with its adjoining conurbation, is the largest in Nigeria, as well as on the African continent. It is one of the fastest growing in the world, and also one of the most populous urban agglomerations.