Shawn: Great video. I have had a heart attact and have 5 stents along with back and related problems etc. After the heart attack, I lost 60 pounds over 10 months by walking and maintaining a reasonable diet. I started out on the level for about 10 minutes until my back could handle it. I gradually increased until I was doing about 20 miles a week. What's great about where I live is there are a lot of hills so I could use various loops. During the winter up here I have to go to the gym and use a treadmill. I typically use a cardio program for 30 minutes at 3mph that varies between 4 and 10 degrees. At my age (66), that works just fine.

Walking on the level for any distance is excersize, but adding hills will make it MUCH better. Losing weight is math. Limit your caloric intake to a certain number and you can figure out what you will lose over time. You can lose a pound or two a week with very little work ...