By Dr. Liji Thomas, MD New research suggests sleeping a little longer on weekends may help people who cut their sleep short ...

This paper examines whether Chinese development finance is associated with faster progress toward Millennium Development Goal style targets in low- and middle-income countries. We combine AidData’s ...

A draft assessment of the health of nature in the United States is grim but shot through with bright spots and possibility. By Catrin Einhorn An unusual outbreak of wildfires in city parks gave ...