I really love this story from the BBC.
Eighty-one-year-old Keizo Yamada of Japan, after completing three marathons already this year, has decided to retire from competive running.
Besides running the Tokyo marathon this year, he ran Boston for the 19th time. (He won that race in 1953.) Yamada competed in the 1952 Olympics in Helsinki.
But this just might be the best part. Although he's retiring from competition, he's going to continue to jog more than 12 miles per day "for fun to stay in shape."
Did I mention he's 81?