This might seem like a REALLY dumb question, but I want to know... my new gym has opened and I have become a gym rat... I have also been taking the one hour kickboxing class, and was wondering if it is safe to kickbox 3 times a week, or maybe even 4? This class is so great, and I sweat my butt off, so, I am just curious!!! I am plus size 16, but I keep up really well, and am proud of myself. But I want to be safe!!