The study of tissues and cells is called
A
Supporting signals because it has nothing to do with your body
Carbohydrate enegery source comrade
“Not only the above but also a heavy bag doesn't move, depending on your style you may end up chasing or running away a lot during a match.
The heavy bag is just punching with a little movement here and there in the ring your work rate has to be much higher otherwise your doomed.
Plus when you take punches that can fatigue you.”
honestly found this on yahoo answers lol, hope this helps!!
