The challenges and impacts of population aging on OECD countries: higher needs for care facilities for older people and increasing life expectancy good health. The challenges and impacts of population aging on OECD countries which are: Higher need for elderly care facilities and prevalence of health expectancies are examined in this essay. Several factors such as nutrition and effective nursing care are the main reasons for this. The world's population will age much more rapidly in the coming decades than before, with fertility continuing to decline and life expectancy increasing (Auer & Fortuny, 2000). Aging is the fact of the human life to which we were born; we grow and age and, over time, we die. As this course of human life is celebrated as a human achievement, rapid and widespread aging is one of the key elements transforming the influence on the development of quality health and productivity. It is estimated that there will be around 1.2 billion people aged 65, but it could reach 1.5 billion in less developed countries today, but this seems to reflect the 22% preview of the elderly population in OECD countries by the end of 2050 (UN, 2002). This essay argues that in general, to provide the optimal level of care to the elderly, meeting the dynamic demands according to their limitations is the enormous challenge, providing quality services for a large part of the population older age will significantly increase expenses. Older population growth directly or indirectly affects healthy life expectancy. The reasons behind this are suggested to be good nutrition and effective nursing care...... middle of article...... & Hussey, 2001). Motive of preventive, supportive, curative and rehabilitative wellness, curing current illnesses and regaining lost potential, which significantly contributes to prolonging life. This essay showed that the oldest elderly population in OECD countries is accelerating much faster in recent decades than before. . Increased requirements for elderly care facilities and the prevalence of health expectancy among older people pose enormous challenges for industrialized countries. Providing adequate nutrition and high-level effective nursing care are crucial factors that make people live longer. To maintain better health for all, the provision of quality labor and services is mandatory, which requires a complex expenditure as life expectancy will increase in developed countries..