In the contemporary world, a number of people suppose that rapid population growth will impact negative on our life. Personally, I completely agree with this view for the following reasons
Overloaded populationhass numerous disadvantageson diffirent levels. Firstly, it is the main cause which leads to unemployment for a lot of people. The rate of people leaving in the country who don't have any jobs is high. Secondly, when proportion of population ascend drammatically, rate of children going to school in the far flunge places are scare. They must stay at home to lend a helping hand in housework. Besides, lacking of water, food are the big problem that government must solve.

Population aging is the increase in the median age of a region's population due to declining birth rates and / or increasing life expectancy. In some countries, life expectancy is increasing and the population is aging The aging population is at its peak in human history.  The United Nations predicts that the population aging rate in the 21 st century will exceed the previous century.