00marathoner3-master1050 Published December 29, 2016 at 1050 × 1816 in 85-Year-Old Marathoner Is So Fast That Even Scientists Marvel ← Previous Whitlock in Toronto in 2012. “He’s about as close as you can get to minimal aging in a human individual,” said Dr. Michael Joyner, a researcher at the Mayo Clinic. Credit Steve Russell/Toronto Star