What's a blue zone, and am I living in one?

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Are you age smart?

Are you age smart?

Are you age smart? When it comes to aging, how much do you know? Test your knowledge with this age smart quiz from Dr. Oz and Dr. Roizen.

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  • Buettner, Dan. "Report from the 'Blue Zone': Why Do People Live Long in Costa Rica?" ABC News. Feb. 2, 2007. (June 25, 2008) http://abcnews.go.com/Technology/LivingLonger/story?id=2843049&page=1
  • Buettner, Dan. "The Blue Zones: Lessons for Living Longer From the People Who've Lived the Longest." Washington, D.C.: National Geographic, 2008.