Less could be more when it comes to the healthy-heart rewards of running: A new study has found that people who ran just 50 minutes or less per week received the same benefit -- three extra years of life -- as those who ran more than three hours weekly.
It had been several months since I had last seen my patient, and even longer since I'd seen his mother. He was 3 and unable to walk or talk, and when I caught his eye, his face broke open into a huge smile . . .