Whenever I think about exercise, I do 2~3 groups. In fact, it is a waste of time and I can't grow muscles at all. You must set aside 60~90 minutes to focus on a certain part, and do 8~ 10 groups for each movement, so as to fully stimulate the muscles, and the longer the muscles need to recover. one
Until the muscles are saturated, "saturation" should be felt by yourself, and the degree criteria are: acid, swelling, numbness, firmness, fullness and swelling, and the muscle shape is obviously thick.