First, shaking the fan can exercise the shoulder joint and muscles.
We have all shaken the fan, and we can feel the muscles and joints of our shoulders moving during the process, and our wrists and arms will also move. Modern people generally lack exercise, so they are more likely to get diseases such as scapulohumeral periarthritis, which are difficult to cure and painful. It is also relatively simple to increase the amount of exercise and activity by shaking fans.
Second, when you shake the fan, you can make your body more relaxed.
What impressed me deeply was that when I was a child, I didn't have a fan at home. I sat in a chair or bed with a fan around me, and my whole body was in a very relaxed state. And you can change hands when you are tired of shaking, so that you can get exercise on both sides of your body. When people relax, they will also reduce the occurrence of diseases and reduce the probability of scapulohumeral periarthritis.
Third, the use of hand-cranked fans can reduce the chill caused by fans and air conditioners.
Nowadays, there are more and more air conditioners at home, and not many people use fans, but in fact, using fans and air conditioners will cause more colds, attack shoulders and cause scapulohumeral periarthritis. Especially for the elderly, their physical resistance is relatively poor and their immunity has dropped a lot. The body can't stand the cold brought by fans and air conditioners. So if there is an old man at home, you can prepare a fan for him, which is very good for your health.