One AARP blogger says it comes down to non-strenuous workouts.
Running isn’t always a race; it's a way to a better life.
They are doing it to raise money for children's fitness programs.
Nearly 80% surveyed have a college diploma.
Bob Babbitt interviews Dean Karnazes after his recent 3,000-mile run across the United States.
Older East Africans enjoy running to stay healthy.