(CBN) -- Would you like to live past age 100? It used to be a rarity. These days, however, people over 100 comprise the fastest-growing segment of the population. Right now there are about 500,000 centenarians worldwide. The United States has the most: 72,000. Studies from the United Nations predict the world will have more than three million centenarians by 2050.
That's good news unless that population suffers from declining health. In fact, many people say they don't want to live that long if it means their last decade is spent in a nursing home not being able to do anything or remember anyone.