1, feet open, hands hanging to the side, eyes looking forward. Next, try to bend your head down to your chest and then lift it up; And lean back as far as possible, and the action can be repeated several times until you are tired. But be careful not to move your shoulders when you swing. ?

2. Stand in the same posture as before and swing your head as far as possible to the left and right sides (left and right shoulders) until you are tired and your shoulders and body can't move.

3. Stand as before. First head forward, then swing to the left and right as much as possible, and then swing to the left and right. This action can be practiced repeatedly until you are tired. ?

4. Swing your head left and right, turn your shoulders, and then turn to the left and right rear near your chest. The rotation route is in a circle above your head. And after finishing the left, this direction will be reciprocating until you are tired. At the same time, your shoulders and body should not shake with you, so as not to affect the exercise effect of neck muscles.