Residents of Okinawa, Japan, practice a unique eating habit of stopping consumption when they feel 80% full, a practice believed to contribute to their exceptional lifespan. This island region boasts one of the highest concentrations of centenarians globally. The practice focuses on mindful eating and leaving a small amount of space in the stomach after a meal. Beyond dietary habits, researchers are investigating other lifestyle factors contributing to longevity in Okinawa. These include strong social connections, regular physical activity, and a purpose-driven life. The “80% plate” rule is presented as a key element in understanding the Okinawan approach to health and well-being, offering potential insights for others seeking longer, healthier lives.