If you want to exercise your wrist strength, forearm muscles and biceps, I suggest you recite dumbbells (in fact, you can recite heavy things, I just put my encyclopedia and general history of the world in the book). Lifting dumbbells is also a very effective way to exercise muscles, but if you practice standing for a long time, it may affect your height, so sitting and lifting dumbbells is a better choice. Of course, if your bed is high enough, you can also lie outside with one hand outstretched. Wrist strength and forearm muscles are also very important, which can be seen when the wrench is powerful. The practical application of wrist strength is second only to pectoral muscles. Forearm muscles can reflect the strength of your arm.
It is not enough to pay attention to muscles. In fact, vital capacity and physical strength are more important. Although the above exercises can exercise vital capacity and physical strength, I personally think running is the best. Of course, leg muscles should be developed by running. It would be best if there was a gym (there used to be a gym downstairs in Singapore apartment, and the basic task every day was to run five kilometers quickly). If there is no such condition, it is recommended to start early every morning. The air is good in the morning and there is no car, otherwise the exhaust gas is bad for your health. If there is a park, you can run in it. Remember, running is not the length of time, but the distance and speed. I suggest you accelerate for at least 20 seconds every 100 meters, and the distance should be more than three kilometers. It doesn't matter if you can't reach it at first. Practice slowly. The method is still those eight words: overdraft physical strength and challenge the limit. When you find that you can meet the above requirements, it proves that your physical fitness and vital capacity are quite good. PS: Actually, it doesn't have to be early in the morning. I used to go to school too late every day, and then I ran five stops to school, which was faster than the bus. That's how I practice.