Description: The first objective is to highlight the key trends and projections that describe the magnitude and scope of the aging world in the 21st century. The second is to identify some of the key issues that countries in the developed and developing world will have to face as a consequence of population aging. The third objective is to emphasize the triumph and opportunities of an aging world, providing a counterpoint to the prevailing notion that the aging of societies is a catastrophe, leading only to undue burden on future generations.

Description: A recent study sheds light on the measurement and implications of the relationship between increased morbidity and declining disability. The results were not consistent across all populations. This study of the compression of morbidity is part of a wider project called the M-project, led by the four authors, which aims to explore the demographic factors leading to an increase in the adult longevity, investigate the phenomenon called the compression of mortality and develop a new methodological approach to longevity analysis with focus on the modal age at death M.