Why do people live to be 100 in some parts of the world and not others? Where are these hot spots, and what makes them so special?

Writer and explorer Dan Buettner has trekked to such hot spots, or Blue Zones, as he calls them. In Sardinia, Italy; Okinawa, Japan; Loma Linda, California; and a remote peninsula of Costa Rica, Buettner discovered that people have similar diets, activities, outlook, and stress-coping mechanisms that he and his research team have condensed into nine healthy habits.

This evening, he reveals the lifestyle traits common to the Blue Zones and discusses potential new longevity hot spots he and his team have located around the world.

Buettner, a writer for National Geographic and founder of Quest Network, Inc., is the author of Blue Zones: Lessons for Living Longer From People Who’ve Lived the Longest (National Geographic Books), which is available for signing after the program.