Question/Jillian DVD's/Slim in Six, etc
How come it's OK to do 30 Day Shred, Slim in Six, etc, every day, when it's working the same muscles? It's not really cardio, it's squats, lunges, arms, etc (in addition to getting your heart rate up). Seems weird to me. Just wondering. (That, and I hurt too bad the next day to do it again...lol). Thanks!
