Although the rate of death is rapidly at which the rate of population increase and decrease remain on different levels. It is the data from multiple sources shows that in the past from time to time. Many countries in the Asian region, rate of reproductive control, reduced, and when there is a reduction in reproductive condition quickly and then resulted in tremendous change in the population's age structure is that each year there will be fewer child, while the elderly population will rise due to the higher birth rate when in the past, and the elderly population has an average age of longevity.