Live with intention. In Costa Rica it's called plan de vida. In Okinawa, ikigai. "Across the board, those living the longest had a clear sense of purpose," says Buettner. "You have to know why you get up every morning." Pinpoint your drive by taking time to reconnect with your values and reassess your passions and strengths. Then look for activities or classes to join where you can do more of those things that make you happiest in life.

Bonus: What are your odds of living to 100? Go to www.bluezones.com and take the longevity quiz.