7 of 12
"When I was 77, I broke my left elbow and was told it would take ten weeks to heal. I had an important triathlon coming up, so I said to myself, 'Oh, no, it won't.' I did everything I could to get fit. Five weeks later, my doctor told me I was good to go."
—Sister Madonna Buder (A.K.A. The Iron Nun), 82, oldest woman ever to complete an Ironman triathlon