as you are saying that are overweight/fat...try do regular easy exercises like treadmill/ cycling..this not only decreases your fat, but also keeps you fit as regular treadmill done keeps your blood pressure in control, active heart and reduction of fat and cholesterol...besides these you have to also develop strict diet and continue it...try to add fresh fruits and veggies to your diet!!! with this you dont feel hungry.....keeps you refreshing too..
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