Hot summer, many people at work after lunch will feel drowsy, short lunch break, and can not find a suitable place to take a lunch break, how to do? Just lie on the table to take a nap. Instead of sleeping on the desk, it is better not to sleep. Because this poor sleeping posture will not only compress the chest, affecting breathing, increasing the burden on the heart, but also easy to cause pressure on the eyes, vision loss. Recently, many epidemiological studies have found that various types of spinal diseases occur in young people, such as cervical spondylosis, lumbar spondylosis and lying down this unhealthy sleeping habits are closely related. Nature has given our spine a beautiful “S-shaped” physiological curve: cervical vertebrae forward, thoracic vertebrae backward, lumbar vertebrae forward, sacral vertebrae backward, this curve is important for maintaining the body’s balance, cushioning adverse external impact, and the habit of sleeping on the table is very detrimental to the health of our spine. When sleeping on the table, the cervical spine bends backward, and the normal physiological curve of the cervical spine convex forward; similarly, the body is lying down, the lumbar spine bends backward, and the normal physiological curve of the lumbar spine convex forward is also the opposite. At this time, the excessive stretching of the ligaments and muscles in the neck will produce a feeling of soreness and pain in the arms for a short period of time, while the strain and relaxation of the ligaments and muscles will gradually break the balance of the spine, causing degeneration of the intervertebral discs of the spine, followed by organic changes in the neck and lumbar back, leading to the occurrence of cervical spondylosis. Young people, in order to stay away from cervical spondylosis, please do not sleep at the desk.