Prisoners exercise biceps brachii
Some people say that you can exercise with your bare hands. Let me give you a way. You can search for prisoner fitness on Youku, which has a very comprehensive method to exercise hand muscles. Push-ups alone are enough to teach you madness. If you persist for two weeks, I believe you can become the male god Bai Wan in your class. I guess you can be the focus of the girls in the class. If you can keep practicing like this for a year, I'm afraid no one in the whole school will dare to look down on you. I used to be the strongest person in middle school. Haha, I hope I can help you.