Holding the back is a kind of body posture, which is more common in fitness and running. The way it moves is to stand up straight, raise its head, then tilt its head backwards until its neck and head form a 90-degree angle, and then slowly return to its original position. This action can effectively stretch the neck, back and shoulders, relieve fatigue, improve posture and enhance coordination and flexibility.

In addition to exercise, we can also use leaning back to help relax in our lives. Working in a sitting position for a long time is easy to cause cervical fatigue and dry eyes. At this time, we can relieve symptoms and relax by looking back. However, it should be noted that the head-up range should not be too large, so as not to cause pressure on the cervical spine, and maintain an appropriate amount for a long time.

In daily life, leaning back posture may also mean a change of mood. For example, "swagger" is a kind of mental attitude, showing your self-confidence, self-esteem and cheerfulness. And "bow down, bow down" is a negative and depressing performance. Therefore, suppressing leaning back is not only the embodiment of individual's physical and psychological state, but also closely related to socialization and emotion.