An aging of population (also known as demographic aging, and population aging) is a summary term for shifts in the age distribution (i.e. age structure) of a population toward older ages. A direct consequence of the ongoing global fertility transition (decline) and of mortality decline at older ages, population aging is expected to be among the most prominent global demographic trends of the 21st century. Population aging is progressing rapidly in many industrialized countries, but those developing countries whose fertility declines began relatively early also are experiencing rapid increases in their proportion of elderly people. This pattern is expected to continue over the next few decades, eventually affecting the entire world. Population aging has many important socio-economic and health consequences, including the increase in the old-age dependency ratio. It presents challenges for public health (concerns over possible bankruptcy of Medicare and related programs) as well as for economic development (shrinking and aging of labor force, possible bankruptcy of social security systems).
As we are aware there are both disadvantages of advantages of a graying population. Firstly the elderly are a strain on the NHS. The percentage of over 65s in the UK is expected to rise by 53% between 2001 and 2031 to over 14m, with little change in the younger population. Therefore, there will be a higher proportion of people (elderly) who require medical attention and care. Furthermore, elderly people are more vulnerable/prone to illness and as a result require hospitalization. However, restrictions have been placed on staffs, which mean that they can only work a set number of hours. This is bad for those who need attention as the NHS will be short on staff and will therefore have to pledge more money on staff, meaning they will have to spend more money, punishing the economy of money and meaning