🇯🇵Okinawa Longevity Practices

Okinawa is one of the original five Blue Zones identified by Dan Buettner, with the highest concentration of centenarians ever documented. The traditional Okinawan diet derives roughly 60% of calories from the purple sweet potato (beni imo), which is rich in anthocyanins and fiber. Residents practice hara hachi bu — the Confucian teaching to stop eating when 80% full — resulting in a naturally calorie-restricted diet without deliberate dieting. Social structure plays an equally important role: moai are small groups of lifelong friends who provide emotional and financial support from childhood through old age.