What's so special about Okinawa? Besides being surrounded by some of the most stunning coral reefs in the world, there's something special about this island's citizens -- they are both lean and long-lived. Part of the reason for their good health is that the practice a tradition called hara hachi bu, which means eat until you are 80% full. The idea is that you eat until you're almost satisfied, ensuring that you don't over stuff yourself. You also allow your body time to sense that you are full, since that usually takes about 20 minutes.

Okinawans who eat a traditional diet are so healthy, that a diet plan has been created around their healthy habits. Called the Okinawan Diet, it focuses on eating fish, whole grains, legumes, and fruits and vegetables, and of course, practicing hara hachi bu at every meal.

Source