I remember going to the gym before. I just exercise with my bare hands. At that time, my muscles obviously felt trembling. My fitness instructor told me that because your nerve strength is small. It may cause tension. He said my posture was not correct. When you feel that lifting something is heavy and difficult, the brain will naturally control muscle contraction, making the tightening more severe, which will lead to body trembling.

Need to add some water properly. Add 9 to 240 ml of water. Secondly, we should get enough sleep. If you are a novice, it is suggested that you relax your training, and don't train too hard, which will cause harm, but will hurt your health.