NPR had a good story on Morning Edition this morning about the benefits of moderate exercise.
There's solid evidence that aerobic fitness ups the odds of living longer. Research suggests that just 30 minutes a day, five days a week can keep you fit...And raising your heart rate isn't as hard as you might think.
Thanks for the quote. It's no surprise to me, since I've been experiencing the benefits of moderate exercise (and walking in particular) for almost a decade now, but it's so much more impressive to hear it from NPR.