The world is getting fatter. That's the conclusion of a recently published study looking at how risk factors for heart disease have been changeing around the world. Read a Washington Post article about the study here and check out a cool interactive graphic depicting relative world fatness here. One of the great paradoxes of our time is that even though as a whole the world is getting fatter, there are still 925 million hungry people in the world. Resolving these two seemingly contradictory problems is another of the great global challanges that we face. 
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