The elderly: the single greatest achievement of mankind

The single greatest achievement of mankind is very likely the increase in life expectancy which has occurred in the twentieth century. Coupled with a decline in the birth rate worldwide, the mean age of most nations is rapidly increasing and the old (especially the old-old, those 80 years of age and over) represent an increasing percentage of the dependent population of the world. Although the ageing of the population will have ramifications for almost all aspects of society, those concerned with the provision of health care are especially affected. With chronic disease replacing acute illness, and costs of care mounting, health-care providers will require a comprehensive assessment of its older citizens so as to be able to provide cost-effective care across all sites, be that location a hospital or, more frequently, the home. The development of such capabilities is already under way by the InterRA1 group, an international group of investigators.