I didn't want to post this in the overtraining thread because I did not want to hijack it. Ironically, I was going to start a thread asking if CNS problems were real. I thought they were, then I read that article by Mark Bell about how they are not. It didn't really change my mind as much as I wonder if his opinion comes from years of steroid use, which allow you to train much harder obviously. I would guess some signs would be lethargy, lack of motivation, things of that sort. That stuff can also be tied into your mood, though. Thoughts?