Ogimi, in northern Okinawa, brings together habits, support networks, and a routine observed for decades by researchers, in a context that has transformed the small Japanese village into an international reference when it comes to longevity.
At the entrance to Ogimi, in the north of Okinawa’s main island, a stone inscription summarizes the image that made the community known inside and outside Japan: “At 80, you are still young. At 90, if your ancestors invite you to heaven, ask them to wait until you are 100.”
The phrase helps to explain why the place became associated with longevity.
In one of the most cited accounts of the village, the population was estimated at around 3 inhabitants, with 15 centenarians and 171 people in their 90sThis is an unusual proportion even for Japan, a country that continues to record highs in the population aged 100 or more.
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In September 2025, the Japanese government reported that the country had reached 99.763 centenarians.
Ogimi and the study on centenarians in Okinawa
Attention to Ogimi has been consolidated over decades of observation of aging in Okinawa.
Since 1975, the Okinawa Centenarian Study It follows elderly people in the province and has become one of the longest-running studies on centenarians in the world.
In a review published based on this work, researchers reported that more than a thousand centenarians They had already been examined up to 2015 and described a profile marked by a lower incidence of age-related diseases, as well as greater functional preservation compared to other groups studied.
According to researchers, there is no single factor capable of explaining the longevity observed in Okinawa.
Studies associate this condition with Traditional eating habits, movement incorporated into routines, consistent social networks, and family genetic influence..
In peer-reviewed articles, members of the study team state that siblings of centenarians from Okinawa have a survival advantage over their respective generations of origin, suggesting the involvement of biological inheritance.
At the same time, the authors themselves emphasize that genetics alone does not explain the phenomenon and that environment and lifestyle remain central to the analysis.
It was from this set of elements that Okinawa came to be included among the so-called Blue zones, areas popularized by journalist Dan Buettner as regions of exceptional longevity.
The ranking propelled Ogimi to international prominence.
Nevertheless, the topic has come to be associated with academic questioning regarding the quality of some demographic records and the risk of transforming a complex social reality into a simplified lifestyle model.
Traditional Okinawan food and the purple sweet potato.
In the field of food, Ogimi is often remembered for its plant-based cuisine, with few processed ingredients and moderate portions.
Scientific reviews on the traditional Okinawan diet They describe the historical consumption of sweet potatoes, vegetables, legumes, soy, and small amounts of fish, with low total caloric intake and high nutritional density.
In this dietary pattern, the purple sweet potato It gained prominence because, for decades, it occupied a central place on the table of the older population.
Another frequently cited habit is hara Hachi bu, an expression used to guide the interruption of a meal before complete satiety.
Scientific literature on the Okinawan diet mentions this practice as part of a pattern of dietary moderation that may have contributed to less chronic exposure to excess calories throughout life.
According to studies, the key is not a single formula, but the combination of food quality, quantity consumed, and regularity of the habit.
Active routine, manual labor, and aging with autonomy.
In addition to diet, the daily routines of older residents often appear in studies as a relevant component.
Instead of formal exercises, what does the literature and accounts about… town describe are Commuting on foot, working in vegetable gardens, household chores, and community participation. even to advanced ages.
In this case, physical exertion is distributed throughout the day, with low intensity and high frequency.
Research on healthy aging indicates that this type of continuous movement is associated with the preservation of functional autonomy.
In Ogimi, this daily life is also related to traditional activities that help maintain social bonds and a sense of belonging.
A local example is the basho-fu, fabric made with banana fiber in Kijoka, a district of the village.
Craftsmanship continues to be recognized as cultural heritage and today faces the challenge of training successors, amidst an aging population and a reduction in the number of skilled artisans.
Ikigai, moai, and social bonds in Okinawa
Another concept frequently associated with Japanese longevity is… ikigai, a term used to express the reason for living or the motive for getting up in the morning.
Recent publications on the Okinawa Centenarian Study treat a sense of purpose as a possible protective factor in aging, alongside resilience and community cohesion.
According to the researchers, this does not mean establishing an automatic relationship between purpose and increased life expectancy, but rather recognizing that perceived usefulness, routine, and social engagement often appear alongside better indicators of quality of life in old age.
Alongside this, the tradition of moai This helps explain why social life in Okinawa receives so much attention.
The term refers to support groups formed by friends or neighbors who remain close throughout life.
Reports about Okinawa and studies on social relationships and mortality indicate that lasting bonds act as a protective factor against isolation, persistent stress, and declining health.
In a widely cited meta-analysis, researchers concluded that social connections exert a significant influence on mortality risk, to a extent comparable to classic health risk factors.
The reservations regarding longevity data in Okinawa
The image of Okinawa as a territory immune to modern problems, however, is not fully supported by the most recent data.
Demographic studies and analyses show that the province lost some of its historical advantage in male life expectancy starting in the 2000s, in a context associated with the Westernization of diet, the rise in obesity, and behavioral changes among younger generations.
More recent studies indicate that Okinawa now faces some of the highest obesity rates in Japan, a far cry from the situation that cemented the fame of its centenarians.
There is also debate about the robustness of some age records used to support narratives about zones of longevity.
AloJapan.com