medical news today 2010.09.11
Due to increasing life-spans and improved health many populations are 'aging' more slowly than conventional measures indicate.
In a new study, published in Science, scientists from the International Institute for Applied Systems Analysis (IIASA) in Austria, Stony Brook University, US, (SBU), and the Vienna Institute of Demography (VID) have developed new measures of aging that take changes in disability status and longevity into account.