Rest the important part of building muscles
To grow muscles you need to build a training program ,follow it rigorously and back it up with a diet that supports growth of your muscles. But the most important part of growing muscles is the rest.You need to allow your muscles to repair the damages and wear and tear it sustained during the work outs and also the time to grow. If you do not allow your muscles to replenish themselves and grow and exercise too often you will be putting in a lot of efforts but will not be able to get much result.
Exercise on a muscle group should be repeated only after 2-3 days of complete rest of that muscle group.You should prepare your chart in such a way that you do not train same muscle groups without having a recovery period in between. How does resting help? Resting helps because when we are resting the body rebuilds the muscles with more thickness and fibers with amino acids and proteins. So don’t set about trying to build muscle fast, as you will eventually slow down the muscle growing process, rest to grow.