Define old

Pole Vault, Walnut, California, 1997

Photograph by Karen Kasmauski

"Defying his 85 years as well as gravity, Carol Johnston practices pole vaulting in Walnut, California. Still competitive, he holds the world record—7'6" [2.3 meters]—for his age. He and 34 million others over 65 in the United States are leading a revolution, remaining vigorous and living longer than any previous generation. While science explores how to add even more healthy years to the human life span, a graying society faces inevitable changes in attitude and lifestyle."

—From "Aging—New Answers to Old Questions," November 1997, National Geographic magazine

http://photography.nationalgeographic.com/cgi-bin/pod/PhotoOfTheDay.cgi?day=19&month=4&year=02