Staying vital longer: Johns Hopkins takes on human aging

When it comes to aging in America and just about anywhere else on planet Earth, there’s good and bad news. First, the bad news: The rapid rise in the number of adults over age 65 foretells an inevitable and rapid rise in cases of chronic diseases — including cancer, cardiovascular diseases, diabetes and Alzheimer’s disease — all contributing to poor health, frailty, disability, loss of independence and early mortality for an increasing number of the world’s population.