Of all exercise programs, brisk walking is one of the easiest and most enjoyable. Walking strengthens the heart and increases blood circulation throughout the body, carrying oxygen and nutrients to the organs. It can also increase the efficiency of the lungs, lower blood pressure, improve blood sugar and cholesterol levels, strengthens legs, and help to reduce body fat.
Selected source ” 10 minute workouts” http://www.fitnessmagazine.com/workout/express/10-minute – ” Ask Well 3 Short Workouts or 1 Long One? by Gretchen Reynolds, 7/5/13 ,