Lying on your back and lifting your head has certain benefits for the cervical spine. Doing this kind of action on the cervical spine has the following main kinds of help: 1, this position helps to restore the physiological curvature of the cervical spine. In the normal human body, the physiological curvature of the cervical spine is forward convex. But because many people will be sitting and standing for a long time with their heads down, this will make the cervical spine straighten, and even backward to produce reverse curvature, by doing this exercise can restore this posture. 2, lying on the floor to raise the head, it is possible to produce a very good exercise for the muscles of the cervical spine. In this process, a series of muscles at the back of the neck, such as the cervical pinch muscle, trapezius and so on will continue to be subjected to exercise, these parts of the muscle strength, help to maintain the physiological curvature of the cervical vertebrae. 3, lying on his back to raise his head to help reduce the pressure on the cervical nerves and blood vessels, will make the cervical spondylosis related symptoms will be reduced. But lying on the head this position, for patients suffering from cervical spondylosis, it is recommended not to maintain long-term. Although this kind of exercise has the above-mentioned benefits for patients with cervical spondylosis, if you sit for a long time, that is, excessive exercise, it is very easy to cause fatigue of the cervical spine.