Hey everyone, I wasn't quite sure where to place this post so I hope this is a good place for this question. I am currently training for a fight and have been on low doses of doctor prescribed Testosterone Cyp. (100 mg per week). The problem is I am really struggling with my cardio while training and believe me, I am working my ass off to increase my stamina. Is it likely that the Test is hurting my cardio? I would not think a dose that low would affect me, but I can't figure out what the hell else it could be.. Thoughts?