This set of movements is one of the trapezius stretching. Hook your waist with your left hand from behind, and gently stroke your head with your right hand, tilting down 45 degrees. Pay attention to the shoulders on both sides to relax and press down, breathe evenly, and repeat this group of actions alternately from left to right. The purpose of this action is to stretch the trapezius muscle. If the trapezius muscle is particularly thick, it will look like a tiger's back, the neck is short and the posture is not straight enough.

2. Buckle

This action can play the role of exercising the big arms and shoulders, making the back straighter and more posture. Keep your upper body straight, your shoulders droop naturally, try to open the strength of your back, put your hands around your back, grab your wrists with your left and right hands as much as possible, and keep your arms close to the center line of your body for 30 seconds at a time. If you can't buckle it, you can use a yoga belt and stick to it for a few days.

3. Lateral deltoid stretching

Hold hands tightly, tilt your head back and forth at 45 degrees, and keep your neck and back upright. One arm is hooked on the chest and the other arm is placed on the elbow joint. Both arms should be in a vertical state, and the direction of force should be the same. Repeat alternately from left to right for 30 seconds. Shoulders must be pressed down to get the best effect of correcting hunchback.

4. Eagle arm

Keep your body straight and don't swing back and forth with the twist of your arm. Hold your chest with your arms, your left arm down and your right arm up. Keep your arms as close as possible, raise your elbows, stay away from your chest, and press your shoulders down and look straight ahead. This set of movements can not only correct the hunchback of shoulders, optimize the lines of arms and neck, but also prevent the sagging of the chest. This is a classic yoga exercise.