Straightening of the physiological curvature of the cervical spine is due to the relaxation of the local ligaments and joint capsule caused by long-term low desk work or low head fiddling with the cell phone, and the change of the curvature of the cervical spine will occur when the ligaments and joint capsule are relaxed, which will then lead to the occurrence of cervical spondylosis. If you want to restore the original curvature, you need to take functional exercises for the muscles of the neck and back and shoulders, and the enhanced strength of the local muscles will make the ligament strength increase.