The cervical spine does not have the most afraid of action, but to avoid low head or improper sitting posture, so as not to cause degenerative changes in the cervical spine. 1. Low head: prolonged low head work, will lead to the weight of the head gathered in the cervical spine, which will cause fatigue damage to the cervical spine, leading to degenerative changes in the cervical vertebrae, and then cervical spine pain and other uncomfortable symptoms. 2. Improper sitting posture: improper posture, often crooked sitting, will lead to spinal muscles, ligaments and other soft tissues around the spine strain, thereby aggravating the damage to the spine, so that the cervical vertebrae appear obvious discomfort. In short, in order to protect the structure of the cervical spine, it is necessary to adopt the correct sitting posture and reduce the low head movement.