The world's longest-lived people may share one thing: bad paperwork

We love stories of Okinawan elders and Sardinian shepherds sailing past 110. But a provocative line of research asks an awkward question: what if many of the oldest "verified" ages are simply wrong? Demographer Saul Newman won a 2024 Ig Nobel Prize for showing that regions producing the most supercentenarians (people claiming to be 110+) tend to be the ones with the worst documentation — high poverty, spotty birth records, and pension systems that reward looking older than you are.

The pattern is striking. When the United States rolled out state birth certificates, the number of supposed supercentenarians in a state dropped dramatically once ages could actually be checked. Old-age records also correlate with poverty and shorter overall life expectancy — the opposite of what you'd expect if these were genuine health utopias. In other words, the data may reflect clerical error, age exaggeration, and pension fraud more than extraordinary biology.

This doesn't mean centenarians aren't real or that lifestyle is irrelevant — reaching 90 or 100 in good health is well documented and clearly influenced by habits. The caution is narrower: the most extreme age claims, the ones that fuel "secrets of the world's oldest person" headlines, rest on shakier evidence than they appear. Extraordinary claims of age demand extraordinarily good records — and those are exactly what many longevity hotspots lack.

The takeaway for anyone chasing longevity: be skeptical of lessons drawn from unverifiable 115-year-olds, and lean on the far larger, better-documented evidence about living well into your 80s and 90s.