Pillows that are too high, too low or not pillow are harmful

"The higher the pillow, the better, and the higher the pillow can not sleep without worry." The clinic often sees patients with pain caused by stiff pillows that are too high." Zhu Junsong, director of the pain Department of Wuhan Puren Hospital, said that in general, the height of the pillow is appropriate to 8 cm to 15 cm, which is based on human physiology considerations, and can better maintain the normal physiological curve of the neck during sleep to avoid the abnormal state of the cervical spine for a long time.

Normal people sleeping high pillow, whether lying on the back or on the side, will make the physiological state of the cervical spine change, so that some local muscles of the neck are over-strained. Over time, the neck muscles will suffer strain and contracture, causing minor changes in the position of the cervical spine, causing irritation or compression of the nerve roots and blood vessels in the neck, reflex cramps, and even causing insufficient blood supply to the brain, resulting in neck, shoulder, back, and arm numbness or dizziness, headache, vision loss, tinnitus, nausea, hearing loss and other symptoms.

'Having a pillow that is too low or not used can also be harmful in many ways.' Zhu Junsong pointed out that pillows that are too low or do not use pillows will cause the cervical spine to be in an abnormal state, which may straighten the physiological curvature of the cervical spine in the long run, and even reverse the arch. At the same time, the abnormal state of the cervical spine may also compress the carotid artery or vertebral artery, affecting the blood supply to the brain, resulting in dizziness, headache and other symptoms; At the same time, the head position is relatively low, and the amount of blood flowing to the head increases, causing the blood vessels to fill up and the walls of the tube to be subjected to additional pressure. Long-term, wake up may feel dizzy, eyelid edema and other uncomfortable symptoms, affecting the quality of sleep; It flattens the chest and increases blood flow back to the heart. For patients with cardiopulmonary diseases, especially those with heart dysfunction, it may increase the burden on the heart, induce or aggravate heart failure, cause breathing difficulties and other symptoms; It may also cause the jaw to lift up, open mouth breathing and even snoring, affecting breathing and sleep quality.