Update: Read the transcript here. Of the 48 least developed countries in the world, 33 are located in sub-Saharan Africa. At the same time, this region stands out with the highest birth rates in the world. By the year 2050, the number of people in the region may double, and by the end of the...

Update: Read full transcript here. The past few years have seen much hype regarding the economic progress in India, much of it extolling the country's "rising incomes" and "exploding" middle class. Entrepreneurs in the country seem to have believed this, resulting in an overbuilding of glitzy malls and the rapid expansion of the number of...

Update: Read transcript here. In 2008, 36 million people died from noncommunicable diseases (NCDs). Deaths related to these chronic diseases are increasing, especially in low- and middle-income countries. Over half of deaths are associated with behaviors that begin or are reinforced during adolescence, including tobacco and alcohol use, poor eating habits, and lack of exercise....