It is true that we are living in a modern era in which the phenomena of globalization have been more ubiquitous than ever before. Through the development of science and technology, the general populace can also improve the quality of their life and longevity. That leads to an aging population. The economic and social impact of population aging is extremely crucial. That's why, many people in some countries prevent it, resulting in an increase in a relatively large number of young adults, compared with the number of older people. Thus, It has lots of advantages. In this essay, I'm going to explain fully about the details.