Methods to relieve fatigue; First, open your mouth when yawning: the brain is the most sensitive organ of the human body to fatigue. When people are tired, the brain will be in a state of hypoxia. At this time, the brain will issue instructions to make people yawn a few times, inhale more oxygen, and relieve the brain from hypoxia. Clinical studies have found that the amount of oxygen inhaled by yawning is five times that inhaled by normal breathing. Therefore, office workers should force themselves to yawn a few times when they feel tired, and every time they yawn, they must try to open their mouths as wide as possible and inhale more oxygen. This can improve the hypoxia state of the brain and make brain cells active again. In addition, if people simply massage their heads with their fingers after yawning every time, the effect will be better. Second, rub your middle finger when you are sleepy: office workers are prone to sleepiness after working for a long time. At this point, they can knead the tip of their middle finger to eliminate drowsiness. The fingertip of the middle finger of human hands is the zhongchong point in the study of meridians in traditional Chinese medicine. Chinese medicine believes that this acupoint is more sensitive to pain. If people are sleepy, rubbing this acupoint can refresh their minds. The specific operation method is as follows: firstly, pinch the right hand acupoint 1 min with the left hand, then pinch the left hand acupoint 1 min with the right hand, and then compare the pain degree of both hands. If the pain in one hand is obvious, rub the acupoints of the other hand (if the pain in the acupoints of the other hand is obvious, it means that the limbs on this side are very tired), and stop kneading until the pain in both hands is equal. Third, sedentary shoulders: According to survey data, 70% of patients with shoulder diseases such as scapulohumeral periarthritis are office workers. It can be seen that the shoulder is the part where office workers should focus on exercise. Here are two simple shoulder exercises: 1. The operator takes a standing posture, legs together and fists clenched. Stretch your arms horizontally left and right and cross your body. Bend the fist down from the wrist to the maximum, inhale at the same time, hold for 10 second, then suddenly release the fist and exhale at the same time. Can be repeated 20 times. Exercise in this way can relax the shoulder and wrist muscles, which has a good effect on relieving the pain of shoulder and wrist muscles. 2. The operator takes a standing posture with his legs apart and parallel to his shoulders. Turn forward 10 with your arms around your shoulders, and turn backward 10. The amplitude of the arm should be large, and the movement can be from slow to fast, and the interval between each direction change can be several seconds to reduce the impact of steering on the shoulder. The arm is wound back and forth 10 turns as a group, and 3 ~ 5 groups can be done continuously. Exercise in this way can make people's shoulder joints fully exercised, which has a good effect on preventing and treating diseases such as scapulohumeral periarthritis. Fourth, walk backwards and practice the back: the back is the most easily fatigued part of the human body. After sitting for a long time, office workers often have symptoms of backache. Experts tell us that the best way to relieve back pain is to walk backwards. Clinical research shows that the effect of adult walking backward 100 step is equivalent to doing a whole set of broadcast gymnastics. This is because walking backwards can mobilize some muscles in the back that can't be exercised at ordinary times and improve their blood circulation. Office workers can walk directly backwards in the office, with 10 steps as a group. Turn around after each group, and you can go to 10 group. It should be noted that people must pay attention to safety when walking backwards to avoid falling.