What is the role of physical activity for health and wellness? How many miles do I have to walk in order to lose one pound of body weight? Why exercise alone is pretty useless if your goal is to lose weight according to the latest research as reported on Time magazine, admitted by Bally's fitness on their website and well accepted by the obesity medicine community that exercise has to be combined with a very low calorie diet for weight loss! Many amazing exercise related facts you may not have known as reported by the US surgeon general!