I agree. Also I think researchers have been remiss in not getting detailed information about the diets of supercentenarians. The dietary information would most likely provide clues as to what life extending compounds are effective in humans. An interesting case is Jeanne Calment who has the longest confirmed lifespan, 122 years, 164 days. From what little I can find about her diet she was consuming life extending compounds. Based on when she was born, 1875, she lived more than two healthy active lifetimes.