Gerontology Research Group

The Gerontology Research Group (GRG) was founded in 1990 by L Stephen Coles, MD PhD, and other physicians and scientists at UCLA, Cal-Tech and online. The GRG mission is to slow and ultimately reverse ageing through the sharing and application of scientific research knowledge. Scientific membership is over 500 members, including many of the world's leading gerontologists, and the GRG has worldwide correspondents for the tracking of supercentenarians (persons aged 110+). The GRG began tracking supercentenarians in 1997 and has the world's largest supercentenarian database (with over 3,000 cases), which includes research, authentication and database. This division is managed by Robert Young, who leads a group of international researchers. GRG has been a major gerontology source for Guinness World Records for over 20 years.

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Oldest person ever

The greatest fully authenticated age to which any human has ever lived is 122 years 164 days by Jeanne Louise Calment (France). Born on 21 February 1875 to Nicolas (1837–1931) and Marguerite (neé Gilles, 1838–1924), she died at a nursing home in Arles, France, on 4 August 1997. Appearing as herself in the film Vincent and Me (Canada, 1990) at the age 0f 114, she is also the oldest actress; at the time, Calment was thought to have been the last living person to have known the artist Vincent van Gogh.