Ive wondered this for a while and it may be common sense but I'd Like to get an experts point of view just to clarify... For fat loss and gaining endurance which is better?...jogging on a street(or anywhere) or on a treadmill?...I jog with 2 1/2lb arm weights in each hand. I get tired faster and feel like I do more on the street but is that just all in my head??? Thanks!!!