Well, it had to end some day, our last taste of the Bue Zones: Sweet Potato Wontons with Cashew Sauce. Contrary to all of the clichés about Californians, in reading Dan Buettner’s description of Seventh Day Adventists in our final Blue Zone, in Loma Linda California, I was put in mind of the genial self-effacing mainstream Mormons of Jonathan Krakauer’s Under the Banner of Heaven. They’re enthusiastic, they volunteer, they care about each other, always willing to pitch in and lend a hand. In short you’d be happy to have them living on your block. Except that they’d live way longer than you; actually, they live longer than just about anybody.