Question 132 of 433
Is the Blue Zones research reliable?
The short answer
The lifestyle lessons are well supported by other research. The claim that these exact places have record numbers of centenarians has been challenged.
A demographer named Saul Newman has argued that regions reporting extreme ages often have poor birth records, and in some cases pension fraud. Buettner and his colleagues respond that they verified ages carefully. I am not in a position to referee that dispute.
Here is what I can say. The strongest of the five is the one closest to my own practice. The Adventist Health Studies at Loma Linda followed tens of thousands of people with solid records and found that Adventists lived roughly four to seven years longer than other Californians, and vegetarian Adventists who exercised, ate nuts, and never smoked lived about ten years longer. Several habits have independent support, particularly movement, smoking avoidance, a plant-rich diet, and social connection. That does not validate every Power 9 claim or demonstrate that the package itself extends life. The wine recommendation should not be adopted as a health intervention.
“This book is for education. It is not medical advice, and reading it does not make you my patient or create a doctor-patient relationship.” From the book’s medical disclaimer. Full disclaimer
MIXED OBSERVATIONAL — Regional age claims are disputed; separate evidence supports several individual habits.Evidence grade (draft mapping)CObservationalPart 10, Q132 · Part sources
From Longevity Unmasked by Afshine Ash Emrani, MD, FACC. Medical disclaimer. This book is for education. It is not medical advice, and reading it does not make you my patient or create a doctor-patient relationship. Nothing here is meant to diagnose, treat, cure, or prevent any disease. Medicine is personal: a test, drug, supplement, or exercise plan that helps one person can harm another. Do not start, stop, or change any medication or treatment because of something you read in these pages. Talk with a licensed clinician who knows your history first. If you think you are having a medical emergency, call 911. The author disclaims responsibility for any loss or harm arising from use of the information in this book.