Back in 2008, AARP helped put the life-extending tactics Buettner deduced from his studies to a test.
They ate wisely, they move naturally, they had the right outlook and they knew how to connect.
Hes out to make you live longer by showing you how the centenarians manage to do so.
Heres what he learned from some of the oldest, wisest people in the world.
Dont want to die?
Loma Lindas secret is that it has the highest population of Seventh-Day Adventists in America.
For the average American, Buettner says, its at least triple that.
Buettner says about a cup ofbeansa day is associated with an extra four years of life expectancy.
They also weigh about 20 pounds less than meat eaters do.
Loma Lindas Ernest Zane, 95, told Buettner hes outlived his dad by 30 years.
He had no idea about health, drank,smoked.
If I followed in my dads footsteps, my lifestyle and things, I would be gone.
You gotta have faith
It wasnt just the Adventists whose religion gave them an advantage.
The long-lived Sardinians and Costa Ricans are mostly Catholics, and in Okinawa ancestors are venerated and prayed to.
It doesnt matter what religion you are.
What matters is that youre part of a faith-based community and that you show up.