Whitney, Craig R. "Jeanne Calment, World's Elder, Dies at 122." New York Times. The longest-lived girl on the earth, Jeanne Calment, took up fencing at age 85, rode her bicycle until 100 and lived alone until 109 (she died at 122). Jack LaLanne, the "godfather of health," still exercises two hours a day at ninety four years outdated. These are only a few of the adjustments that take place in the body as we age.