supercentenarian

A supercentenarian is a person who has reached at least 110 years of age. The term is used in demography and gerontology to describe the most long-lived individuals. Verification of age is essential, and researchers rely on official records such as birth certificates, baptismal records, census data, and death certificates. Organizations such as the Gerontology Research Group (GRG) and the International Database on Longevity (IDL) maintain lists of verified cases and establish criteria for eligibility.

Supercentenarians are extremely rare because the risk of death increases with age. There is a clear female predominance among documented cases, a pattern observed in most longevity data. Most verified cases come from countries with robust vital-record systems and long life expectancy histories, including the United States, Japan, and several European nations.

Notable individuals include Jeanne Calment of France, widely cited as the oldest verified person at 122 years. Other well-documented cases include Sarah Knauss of the United States at 119 and Misao Okawa of Japan at 117. Research on supercentenarians informs studies of aging, resilience, and the biology of longevity, though explaining extreme ages remains complex and multifactorial. Because records can be incomplete or disputed, some candidate cases remain unverified and the total number of confirmed supercentenarians is small and periodically revised.