90-year-old Haruko Maeda, in the front yard of her home in Ogimi Village, taking a break from cutting her lawn with a pair of hand shears. "I'm getting this done before it gets too hot," she explains. Hara hachi bu: "eat only until 80 percent full," say older Okinawans. The island has been the focus in recent years of researchers trying to discover why a disproportionately large number of Okinawans are living to age 100 or more. (Supporting image from the project Hungry Planet: What the World Eats)