From the Sacremento Bee, an article on the rising numbers of centenarians. That the number of centenarians is doubling each decade is a mark of rapid advances made in medicine. The article discusses current research into the causes of longevity: the genetics and lifestyles of centenarians are under scrutiny. This will hopefully lead to a greater understanding of aging and the promise of longer healthy lives for all. The existence of hale and active 90-year-olds indicates that frailty and disease are not a fundamental part of the aging process.