Tea, soft drinks, and chocolate were also assessed in the research, but coffee accounted for about 80 percent of all caffeine consumption in respondents.
Why Is China Buying Up Our Farmland? #Muckreads: A weekly roundup of investigative reporting from ProPublica.
What Happened at Slate This Week? Social media guru Lindsey Underwood highlights the most popular stories of the week, from the Patriots to Tom Petty.
Why Do We Ignore Warnings About Earth’s Future? “What's dragging us down is religious faith.”
The Tweet Bowl What Twitter’s smartest culture and sports writers are saying about the Super Bowl.