Ok i've just started my 4th week of 500 mg/wk of sust and I was wondering if its ok to do cardio while on this stuff? I'm afraid I will end up getting a heart attack or something so I cut cardio out completely when I started the cycle? What do you guys know about anything that could possibly be detremental if adding cardio along with this stuff? Note: I am taking 20mg-30mg of nolv a day.