Starting to get crowded in 100-year-olds' club
Sunday, July 19, 2009 - 14:49
in Psychology & Sociology
(AP) -- It's starting to get crowded in the 100-year-olds' club. Once virtually nonexistent, the world's population of centenarians is projected to reach nearly 6 million by midcentury. That's pushing the median age toward 50 in many developed nations and challenging views of what it means to be old and middle-age.