Harriet Anderson said she tries to swim, bike and run three times a week since she's planning to compete in the one of the most grueling races in the world, Hawaii's Ironman. Anderson is also 73 years old.
"This makes me feel young," she said. "So I think if I continue along the path of exercising and continue eating good and I think I'll live a long time."
With Anderson's near three quarters of a century on this earth, she has seen plenty of advances in exercise technology and believes it has been beneficial.
"I think my personal techniques have gotten better, mainly because of technology and science," she said. "There's always new information and they do new studies and so I try to incorporate that in my training."
Pro or not, it seems like that drive, that "eye of the tiger" is in some ways its own fountain of youth.
Do you have more information about this topic? If so, please click here to contact the editors of ABC News.
