Book excerpt: With the right lifestyle, experts say, chances are that you may live up to a decade longer. What's the prescription for success? National Geographic Explorer Dan Buettner has traveled the globe to uncover the best strategies for longevity found in the Blue Zones: places in the world where higher percentages of people enjoy remarkably long, full lives. And in this dynamic book he discloses the recipe, blending this unique lifestyle formula with the latest scientific findings to inspire easy, lasting change that may add years to your life. Buettner's colossal research effort has taken him from Costa Rica to Italy to Japan and beyond. In the societies he visits, it's no coincidence that the way people interact with each other, shed stress, nourish their bodies, and view their world yields more good years of life. You'll meet a 94-year-old farmer and self-confessed "ladies man" in Costa Rica, an 102-year-old grandmother in Okinawa, a 102-year-old Sardinian who hikes at least six miles a day, and others. By observing their lifestyles, Buettner's teams have identified critical everyday choices that correspond with the cutting edge of longevity research and distilled them into a few simple but powerful habits that anyone can embrace