In modern society, due to the long hours of ambulatory work, facing the computer or fluorescent screen, manipulating the mouse, more and more patients with neck pain and discomfort, especially teachers, white-collar workers in offices, as well as some people who face the computer work for a long time. Patients often feel pain and discomfort in the neck, stiffness and weakness, and in serious cases, they have the feeling of “heavy head, neck is about to break”; at the same time, many patients have tightness and heaviness above the shoulders, as if a heavy burden is pressed; some patients will feel dizzy and not clear-headed. Most of these patients do not have symptoms of nerve root and spinal cord injury such as radiating pain in the upper limbs, weakened muscle strength or bulky limbs, or weakness in the lower limbs. Cervical X-rays, CT and MRI examinations only show cervical degeneration, osteophytes, changes in the curvature of the cervical spine (straightening or retroflexion), and degeneration or mild protrusion of the intervertebral disc. These patients are not yet at the point of needing surgical treatment, and conservative treatment has good efficacy because the symptoms in these patients are mainly due to dysfunction of the neck muscles. As with the lumbar spine, there are two groups of muscles around the cervical spine with different functions: the local stabilizing muscles and the overall motor muscles. The local stabilizing muscles are located deep in the neck, close to the vertebrae, and their function is mainly to maintain the stability of the cervical spine. The overall motor muscles, on the other hand, are located superficially in the neck and primarily produce movement of the neck. When we use the cervical spine improperly: such as ambling, staring down at the display screen for too long, the local stabilizing muscles responsible for maintaining the stability of the cervical spine will be fatigued, or even will not work, and then we will feel soreness and weakness in the neck. The overall motor muscle located superficially has to compensate for the work of the local stabilizing muscle, and the overall motor muscle will also be fatigued after a long time, resulting in symptoms of stiffness, soreness and muscle tension in the neck. Therefore, the dysfunction of neck muscles is an important cause of neck pain and discomfort, and to solve the problem at root, the function of local stabilizing muscles needs to be improved so that they can work effectively from scratch. However, conventional neck exercise gymnastics (e.g., rice exercise) and strength training (head tilt in prone position) methods exercise mainly the superficial overall motor muscle, and it is difficult to reach the deep local stabilizing muscle, so the exercise effect is slow and unstable, and it is not easy for patients to adhere to. The emergence of sling exercise therapy (SET) has changed this situation. By suspending the head, the deep local stabilizing muscles can be easily activated, thus relieving the symptoms quickly with immediate and miraculous effects. This therapy has been applied in our department for more than 1 year and has cured a large number of patients with chronic neck pain. The following is a typical case: The patient is a female, 55 years old, who has been facing computer work for a long time, suffering from neck stiffness and uncomfortable movement for 10 years, which has been aggravated for 1 year; the patient often feels stiffness in the neck, dizziness when working for a long time or with a large movement, and numbness in both arms and fingers when waking up at night. Usually, there was pain in the left scapular region. After a period of suspension exercise treatment, the patient’s symptoms of neck stiffness were significantly relieved, and the symptoms of dizziness, pain in the left scapular region and numbness in the hands at night disappeared. At the same time, under the guidance of the doctor, the patient learned the correct working posture and effectively prevented the recurrence of symptoms.