Ikigai: The Japanese Secret to a Long and Happy Life

by Héctor García

According to scientists who have studied the five Blue Zones, the keys to longevity are diet, exercise, finding a purpose in life (an ikigai), and forming strong social ties—that is, having a broad circle of friends and good family relations.

The 80 percent secret One of the most common sayings in Japan is “Hara hachi bu,” which is repeated before or after eating and means something like “Fill your belly to 80 percent.” Ancient wisdom advises against eating until we are full. This is why Okinawans stop eating when they feel their stomachs reach 80 percent of their capacity, rather than overeating and wearing down their bodies with long digestive processes that accelerate cellular oxidation. Of course, there is no way to know objectively if your stomach is at 80 percent capacity. The lesson to learn from this saying is that we should stop eating when we are starting to feel full. The extra side dish, the snack we eat when we know in our hearts we don’t really need it, the apple pie after lunch—all these will give us pleasure in the short term, but not having them will make us happier in the long term. The way food is served is also important. By presenting their meals on many small plates, the Japanese tend to eat less. A typical meal in a restaurant in Japan is served in five plates on a tray, four of them very small and the main dish slightly bigger. Having five plates in front of you makes it seem like you are going to eat a lot, but what happens most of the time is that you end up feeling slightly hungry. This is one of the reasons why Westerners in Japan typically lose weight and stay trim. Recent studies by nutritionists reveal that Okinawans consume a daily average of 1,800 to 1,900 calories, compared to ...