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Bolotana, Sardinia, Identified as a New “Blue Zone”
By Drooid · · How we work
New Blue-Zone Candidate
National Geographic researchers have highlighted the tiny Sardinian village of Bolotana as a possible new “blue zone,” a region where residents enjoy unusually high longevity. In a 2024 snapshot, 10 of Bolotana’s 2,262 inhabitants were at least 100 years old—about ten times the Sardinian average and eleven times the U.S. average, according to the researchers.
Lifestyle Habits Linked to Longevity
The research team, which includes Dan Buettner—founder of the Blue Zones concept—identified three daily habits common among the village’s long-lived residents:
- Unconscious movement: Steep, walkable streets lead residents to walk to shops, cafés, workplaces and friends’ homes rather than drive.
- Predominantly plant-based diet: Roughly 90 % of a centenarian’s diet consists of beans, vegetables, wheat, olives and olive oil, with meat consumed only about five times per month.
- Strong social connections: Frequent gatherings for meals, church, and community activities create a tightly knit social fabric, especially among women.
Demographic and Dietary Details
- Centenarian prevalence: 10 centenarians out of 2,262 residents (?0.44 %).
- Diet composition: Beans are described as the “cornerstone” of the local diet; olive oil from ancient trees replaces lard used in other highland zones.
- Gender differences: Women rank second worldwide—behind Hong Kong—in life expectancy at age 70 and survival to age 100, a pattern researchers attribute partly to men sharing household responsibilities and reducing women’s stress load.
Implications for Public Health
Buettner argues that Bolotana’s environment illustrates how everyday design can promote health without formal exercise regimes. He notes that walkable American neighborhoods already show a three-to-five-year life-expectancy advantage, suggesting that shaping cities to encourage “unconscious walking” could improve national longevity. The findings also emphasize the potential health value of community interaction and plant-forward diets, though the study does not claim direct causation.
Verbatim Quotes
- “The international team of demographers, their population scientists … were able to examine the birth records, death records and baptismal records and see that this is probably the richest, most complete data on centenarians in the world,” — Dan Buettner
- “It’s a sense of community, but it's also people proactively understanding that sitting down with a friend and talking about your troubles and your day with somebody who cares about you is a much more powerful drug than a pharmaceutical,” — Dan Buettner
- “About 90% of a centenarian's diet has been all plant-based,” — Dan Buettner
- “Beans are the cornerstone of the longevity diet here,” — Dan Buettner
- “These are real humans with an average set of genes,” — Dan Buettner
- “It’s this sort of unconscious walking that’s far more important for longevity than going to the gym.” — Dan Buettner