The Power of Walking in the Fitness Industry

CNN's John D. Sutter is a fitness expert and author of the book "Dirty Laundry" He says you should walk six to seven days a week, lift three or four times a week in order to get fit. And then one day a week do something that makes you huff and puff, he says. The best way to work out? A 15-minute weight workout followed by a 45 minute walk every day.