National Economy Health & Safety 'The Longevity Economy': What Does It Mean To Be Old? 8:19am November 18, 2017 ECONOMY Business On Aging National Share URL copied to clipboard! Copyright 2017 NPR. To see more, visit http://www.npr.org/. 300x250 Ad More Weekend Edition Saturday World News Chileans weigh a new constitution by Scott Simon Sports Saturday sports: Serena Williams' dramatic U.S. Open by Tom Goldman 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate