IT DOESN'T COME IN A SLEEK BOTTLE. It doesn’t involve kale in unspeakable forms. And it doesn’t promise six-pack abs by Thursday. But the Okinawa diet — an eating pattern inspired by the traditional ...

Travelers to Japan are looking beyond the usual hotspots like Tokyo, Kyoto and Osaka, thus Okinawa is emerging as an option for visitors who enjoy a tropical climate and “Blue Zone” culinary culture.

The islands of Okinawa, located in southern Japan, are home to more centenarians—people aged 100 or older—than anywhere else in the world. People living in Okinawa have a lower rate of cancer, ...