Pillow too high or too low, will affect the quality of sleep and physical health. People suffering from cervical spondylosis, should pay more attention to the height of the pillow. Generally speaking, the height of the pillow is best consistent with the shoulder width of the cervical spine side, so that the neck is always maintained in the normal height of the physiological curve. The pillow is too high, it will make the cervical spine to form a certain physiological flexion, so that the ligaments and muscles of the back of the neck are overstretched; the pillow is too low, it will also make the front of the neck to form the same pull, over time, it will make the cervical spine is not stable, easy to lead to cervical spondylosis. Over time, it will also cause osteophytes. It is worth noting that most of those who suffered from cervical spondylosis in the past were middle-aged and elderly people, but now there is a clear trend of under-ageing, with the youngest of the cervical spondylosis patients being only 10 years old. Cervical spondylosis can be prevented by paying attention to the following points: 1. prevent the neck from getting cold; 2. maintain a good posture of the cervical spine, such as an upright neck, relaxed neck and shoulders; 3. prevent neck injuries and avoid sudden neck turns; 4. strengthen neck muscle exercises, such as forward flexion, backward extension, left flexion, right flexion, left rotation, right rotation, etc., exercise as slowly as possible, the amplitude should be as large as possible; 5. patients with dizziness symptoms Do not do cervical spine ring rotation movement.