When you're just starting out, how much is too much exercise?
Way back when I was a teenager, I was a runner, then gave up running and became a hardcore cyclist. I loved the rush that came from a good work out. I can sense that starting to happen. I was at the gym yesterday, for the second time. I did 50 minutes of cardio (broken up), and a round on the weight machines. I spent the rest of the day feeling like I should do more. I did stretch out a few times, using my 3lb dumbells. Today I am up and at'em and wanting to go to the gym, or do a work out video (or both?).
I am sort of concerned that I may fall back into that "addiction" of working out, and wondering, if I am just starting out, is that a bad thing? I can I damage myself or my weight loss efforts?
I did some weight lifting as a teen too, and I know that I can hurt myself by using too heavy of weights, or using them improperly, etc. But what I am really wondering is, will I do myself harm by working out too often?? Or will I stagnate my weight loss efforts?

Well, not entirely. I get some house work in there. 

