Science Health & Safety Study: Since The 1970s, Drug Overdoses Have Grown Exponentially 7:56am September 22, 2018 by Rhitu Chatterjee Research News Science Health Share URL copied to clipboard! Copyright 2018 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