Good links expunge...especially the second one. Really showed what lifting can do for you! That's what I'm trying to accomplish now. I was lifting light, now trying to up the weight.
I didn't exercise at first. I couldn't, I was too big, joints hurt too much. But I still lost a ton of weight without it. I felt so much better when I finally did start to walk on treadmill, then jog now running! Added in lifting. I feel so much better with exercise! I'm strong. I'm fit. I used to get out of breath just walking, now it takes a lot, like running, to get my heart rate up.