Noroozian Maryam
Memory & Behavioral Neurology Department, Roozbeh Hospital, Tehran University of Medical Sciences (TUMS), Iran.
Iran J Psychiatry Behav Sci. 2012 Fall;6(2):1-6.
The population ages 65 and over is expected to grow very rapidly in all parts of the world. Over the next decades, the elderly population is projected to grow much more quickly than the total population in all parts of the world. At the global level, the number of those over age 60 is projected by the UN Population Division to increase from just under 800 million in 2011 (representing 11% of world population) to just over 2 billion in 2050 (representing 22% of world population). World population is projected to increase 3.7 times from 1950 to 2050, but the number of those aged 60 and over will increase by a factor of nearly 10. Among the elderly, the "oldest old" - i.e., those aged 80 and over - is projected increase by a factor of 26. ACCOMPANYING THESE PROJECTED INCREASES IN ELDER SHARES THROUGHOUT THE WORLD IS ANOTHER SALIENT TREND: the "compression of morbidity". Anti-aging technologies - from memory-enhancing drugs to high-tech joint replacements - and healthier lifestyles have not merely increased longevity but have also made old age healthier. Although population aging is occurring in both developed and developing countries, the most rapid aging is taking place primarily in relatively newly industrialized or developing countries. Population aging generates many challenges and sparks concerns about the pace of future economic growth, the operation and financial integrity of health care and pension systems, and the well-being of the elderly.
individual, organizational, and societal.
预计全球各地65岁及以上的人口将迅速增长。在未来几十年里，预计老年人口的增长速度将远远超过世界所有地区的总人口增长速度。在全球层面，联合国人口司预计60岁以上人口数量将从2011年的略低于8亿（占世界人口的11%）增加到2050年的略超过20亿（占世界人口的22%）。预计1950年至2050年世界人口将增长3.7倍，但60岁及以上人口数量将增长近10倍。在老年人中，“最年长的老人”，即80岁及以上的老人，预计将增长26倍。伴随全球老年人口比例的这些预计增长而来的是另一个显著趋势：“发病期的压缩”。从增强记忆的药物到高科技关节置换等抗衰老技术以及更健康的生活方式不仅延长了寿命，还使老年生活更健康。尽管发达国家和发展中国家都在经历人口老龄化，但最快速的老龄化主要发生在相对新兴工业化或发展中国家。人口老龄化带来了诸多挑战，并引发了对未来经济增长速度、医疗保健和养老金体系的运作及财务完整性以及老年人福祉的担忧。
个人、组织和社会层面。
