by: Paula Spencer Scott (Parade)

Hope to blow out 100 birthday candles? “I would argue that the biggest impact on how long you live is where you live,” says National Geographic Fellow Dan Buettner, who has studied the world’s longest-living people in “longevity hotspots” he calls Blue Zones. Among them: Sardinia, Italy; Okinawa, Japan; and Nicoya, Costa Rica.

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