The greater the bending of the head the greater the pressure on the spine, this statement is correct, so a moderate backward bending is conducive to the growth of the cervical spine. When the head is bent forward, for the spine in the cervical intervertebral disc pressure will gradually rise, thus compressing the cervical joint capsule material, so that it protrudes outward, long-term can lead to narrowing of the vertebral space, joint capsule, ligament relaxation, and even cervical degeneration, the development of cervical spondylosis. The prolonged forward bending of the head, i.e., low head, which is common in life, can lead to a series of uncomfortable symptoms, such as stiffness and pain in the neck and shoulder, accompanied by headache, dizziness, nausea, lumbar back tenderness and lumbago. Due to long-term compression of the basilar artery, it can also lead to insufficient blood supply to the brain, tinnitus and migraine, and in severe cases, transient cerebral ischemia, sudden vertigo and fall due to the rotation of the cervical spine. Therefore, the head lifting action in life can keep the cervical spine overstretched, inducting the joint capsule to the intervertebral disc gap, so that the intervertebral disc to maintain the normal gap, but also to maintain the physiological curvature of the cervical spine, but need to pay attention to not excessive backward bending. In addition, especially long-term desk workers or students and other groups, head down for a period of time, should pay attention to the appropriate head rest, can effectively relieve the pressure on the spine. In addition, daily sitting or standing posture, pay attention to keep the head position and cervical spine level, avoid excessive forward head extension or head down, so as not to produce excessive pressure on the cervical spine. Try to use a pillow with the right height to help relieve the pressure on the cervical spine.