Not to mention more, first of all, increasing the chest and back mainly depends on lifting weights, and dumbbells are generally used to practice arms and shoulders. It is unrealistic not to go to the gym to exercise large muscle groups.

Secondly, to increase muscle, we must adjust our diet to give priority to high protein. I don't know if you've ever done this.

Finally, if you practice every part of your muscles every day, especially if you are thin but have the heaviest strength,

I'm sorry to tell you that you'll never grow muscles. Because you don't let your muscles rest, they have been damaged and can't be repaired. How to talk about increase?

The basic element of exercise is to practice different parts four to five times a week, with a rest interval of two to three days a week. Let's talk about this first.