TL;DR
A study in Frontiers in Aging found unusually high late-life survival among women in Bolotana, Sardinia. Researchers estimated that 13.8% of women there who reach 70 live to 100, but the study does not establish what causes the pattern or whether it will persist in younger generations.
A study of historical demographic records from Bolotana, Sardinia, found that women who reach age 70 there are estimated to be nearly four times as likely to live to 100 as women in the United States. The research, published in Frontiers in Aging, suggests the village may be a newly identified longevity hotspot, though it does not establish why residents live so long.
The researchers examined civil and church records for the village, which has about 2,300 residents, and reconstructed life histories spanning more than a century. They reported 38 centenarians among 3,060 people born in Bolotana between 1900 and 1925. Their estimates indicate that 13.8% of Bolotana women who reach 70 live to 100, compared with about 3.5% in Italy and 3.6% in the United States.
The research assessed life expectancy at age 70 as well as the probability of surviving from 70 to 100. Bolotana women reaching 70 were estimated to have nearly 21 additional years of life expectancy. In 2024, six people aged 100 or older were living in the village; the researchers estimated that this represented a prevalence roughly 11 times the U.S. rate. These figures describe different measures and populations, and the study does not claim that every resident has exceptional longevity.
To check ages, the team matched birth and death records with baptismal records in local archives. The authors argue that this multiple-record approach helps address concerns about errors in reported ages. The study was co-authored by S. Jay Olshansky, professor emeritus of epidemiology at the University of Illinois Chicago School of Public Health, and led by Giovanni Mario Pes, according to the article and study citation.
Why Bolotana’s Records Matter
The findings add a possible new site for studying longevity to research on so-called blue zones, communities where people appear to live longer than populations in surrounding areas. Sardinia already has a blue zone identified more than two decades ago, known especially for unusually high male longevity. Bolotana stands out in this report because the strongest survival pattern was found among women.
The village’s archives are a major part of the research value. Claims about exceptional old age can be difficult to assess when records are incomplete or ages cannot be independently checked. Here, researchers used multiple sources to verify ages, giving scientists a basis for further demographic work. The results could help guide studies of health, aging and social conditions, but they do not show that any single lifestyle practice causes longer life or that the findings can be readily reproduced elsewhere.
Olshansky said the broader aim is to identify characteristics of such communities that might be useful beyond Sardinia. That is a research goal, not a demonstrated public-health intervention. Establishing which factors matter—and whether they can be changed—would require additional evidence.
Top picks for "sardinian village longevity"
As an affiliate, we earn on qualifying purchases.
Sardinia’s Longevity Research
Sardinia has attracted longevity researchers for decades. The island’s previously identified blue zone is associated with unusually high male longevity, a pattern that differs from the general finding in many populations that women tend to outlive men. The Bolotana study adds a separate local case, with women emerging as the group with the most striking late-life survival estimates.
Bolotana first drew attention because of its concentration of centenarians. The new analysis went beyond counting people over 100, examining the probability of reaching that age among people who had already survived to 70. The study, titled “A new blue zone? exceptional late-life survival in Bolotana, Sardinia,” appeared in Frontiers in Aging in 2026. Its authors describe the village as a possible new blue zone, rather than presenting the label as a settled conclusion.
“What makes Bolotana extraordinary is that it has an incredible historical record that allows us to definitively evaluate ages at birth and death.”
— S. Jay Olshansky, study co-author
What May Explain Longer Lives
The study documents a survival pattern but does not determine its causes. Researchers cited locally produced food, including olive oil, daily walking on steep streets, family support, social connection and genetics as factors worth investigating. The available findings do not show how much each may contribute or whether one factor is more influential than another.
It is also unclear whether the estimates for people born between 1900 and 1925 will apply to later generations, or how the village’s results compare with other populations under identical methods. The small community and historical nature of the records limit what can be concluded about present-day residents. Describing Bolotana as a “new blue zone” remains a proposed interpretation of the findings, not a causal explanation or proof that residents share one longevity trait.
Further Study of Bolotana
The immediate next step is further research into the social, environmental, genetic and dietary conditions that may be associated with Bolotana’s survival pattern. Researchers could also compare the village with other communities using consistent definitions and validated records. The source report does not announce a specific follow-up study or timetable.
For now, the published analysis provides a documented case for researchers to examine, rather than a formula for extending life. Any claims about adopting local habits to improve longevity would need supporting evidence beyond the demographic comparisons reported in this study.
Key Questions
What did the Bolotana study find?
Researchers estimated that 13.8% of women who reach age 70 in Bolotana live to 100, compared with about 3.5% in Italy and 3.6% in the United States.
Has Bolotana been confirmed as a blue zone?
No. The study suggests Bolotana may qualify as a new longevity hotspot or blue zone. The label is presented as a possibility, and the research does not explain the causes of the survival pattern.
How did researchers check residents’ ages?
The team matched birth, death and baptismal records in municipal and church archives to validate ages, including those of people who reached 100.
What might contribute to longevity in the village?
Researchers identified walking, locally produced food, family support, social connection and genetics as possible factors to investigate. The study did not prove that any of them causes longer life.
Source: rss
