Older people are one of the fastest-growing groups of runners. How safe is it?

Doctors explain the benefits and risks of running after age 60, whether someone's a lifelong runner or thinking of starting a ...
The Healthy @Reader's Digest on MSN

We asked 4 aging experts the one thing everyone should start at age 40—and they all said the same thing

"Five minutes is enough to begin—truly," insists one doctor, to help you "remain engaged in the activities that give [your life] meaning" into old age.