FOXO 3A gene belongs to a forkhead family of so called "superintendent genes" which are critical for the surveillance and maintenance of cellular functions. Having this right variant has been shown in several studies across different species including all races and cultures among humans. Please click on the Link below for more details.
New research suggests that your life choices might not be the crucial factor in determining whether you make it to 95 or beyond; it finds that many extremely old people appear to have been as bad as everyone else at indulging in poor health habits during their younger years.
Olshansky said the findings underscore the importance of genetics to life span. "The only way anyone has any chance at all of living an exceptionally long life is if they won the genetic lottery at birth," he said.
Sources: Jill P. Crandall, M.D., professor, clinical medicine, Albert Einstein College of Medicine, New York City; S. Jay Olshansky, Ph.D., professor, epidemiology, University of Illinois at Chicago; 2011 Journal of the American Geriatrics Society