It may, in fact, be possible to outrun death and even the creeping ravages of time at least for a while.
Research spanning two decades has found that older runners live longer and suffer fewer disabilities than healthy non-runners.
And the findings probably apply to a variety of aerobic exercises, including walking, said the study authors, from Stanford University School of Medicine, whose findings are published in the Aug. 11 issue of the Archives of Internal Medicine.
"This is telling you that being a runner, being active is going to reduce your disability, and it's going to increase your survival," said Marcia Ory, professor of social and behavioral health at the Texas A&M Health Science Center School of Rural Public Health in College Station. "Late in life, you still see the benefit of vigorous activity."