by: Hilary Brueck (Business Insider)
Dan Buettner, a continent-trekking cyclist and storyteller, figured out that the world consisted of at least five "Blue Zones," in the early 2000s. That's when he made the term, which was first coined by the European demographers Michel Poulain and Gianni Pes, a household phrase in a best-selling cover story for National Geographic.
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