1. 2013.04.27

2. 3. (biological aging) (psychological aging) (sociogenicaging) (6565) 4. ( Aging ) 5. 19939657% 200610% 40~6465 6. 41 57.41 60.2651 62.95 67.6461 67.57 72.3071 69.84 74.8681 71.78 77.1991 74.58 80.2497 75.6 82.3 7. 2000 2010 2020 2030 2040 2050 15.7 17.0 20.5 25.1 28.7 29.6 13.2. 14.8 16.8 21.3 22.8 23.7 16.9 19.9 24.3 26.8 31.7 32.0 7.2 10.0 17.3 26.8 31.7 32.0 16.9 22.4 28.3 30.9 35.9 39.9 15.0 17.1 21.4 24.9 28.1 28.1 6.9 8.3 12.1 17.0 24.1 26.8 10.6 11.7 16.5 24.6 29.3 32.0 12.3 13.6 17.1 20.6 22.9 24.1* 8.6 10.5 16.2 23.5 28.6 32.965 8. United Nations,World Population Prospects 7% 1864 1929 1942 1970 2001 1993 115 46 73 24 25 2414% 1979 1975 2015 1994 2026 2017 41 51 19 11 10 820% 2020 2026 2034 2005 2036 2025 9. : :29(1996) 72(2008) 65:1.5/ 10. ? 1.40 2. 3. 11. ? 4. 5. 6. 12. ? 7. 8.36~40 13. 14. 15. 16. 17. 17 18. /20 19. 20. 80% 21. 30% 22. 23. 5115 24. "" 25. 26. 28-- 27. 29 (J109-74) 28.