Hi Cathe, I'm new here. I have worked out for 2 1/2 yrs doing cardio and strength training. I am very interested in Body Building. Not to the exstint of the professionals, but really want better cuts in the muscles. My one problem is losing energy while I do my cardio.Is there something you can eat or take that really gives you a boost before workouts. I try to stick with low-fat proteins and low cabs. Also if your muscle is large enough for you but you want more definition, what do you do? Thank- you so much!