yeah, it's really amazing what doing cardio has done for me. I haven't really seen any changes in my body's appearance...but then again I look at it every day, so little changes wouldn't be as noticeable. But I have noticed some change in my endurance and energy levels. I don't really have much energy during work, but I think it's b/c I don't have any caffeine and b/c it's hot in the body shop. But once I get out on the court and start running around, I have a ton of energy. I think I played something like 10 full court games for almost 3 hours today. And 4 months ago if I played 3 games in 2 hours I was done for.