Can someone please tell me when the correct time is to do cardio. It seems to me that I never can find time. My workout is...Monday-chest and legs....Tuesday-Arms and Shold....Wed-off....Thursday-Chest and legs...Friday-Shold and arms...and sat and sunday off...some say this is overtraining thats fine it works for me very well. My question is where can i fit in the cardio. I need to do my running workout 4 days a week...I really dont want it to interfere with leg day because that happined this week and it sucked. Any ideas would help guys.