Mr. Wang is a white-collar worker in an office building. His daily work is to sit at his desk, manipulate the computer for long hours and handle the heavy daily business. When you need to work overtime, often in the company’s soft double sofa curled up to rest overnight. But just a few days ago, he suddenly developed dizziness and swelling, soreness and swelling in his lower back, and his activities were obviously limited, so that he could not do his normal work. During the treatment in the hospital, the relevant examination showed that Mr. Wang’s lumbar spine physiological curvature straightened and degenerative changes were obvious, and the doctor pointed out that this was the result of long-term sedentary, inappropriate work and rest methods. Lumbar spondylosis and modern people almost like a shadow, its onset is mainly related to postural fatigue, especially long-term work in front of the computer people. In addition to office habits, sitting incorrectly, most of the back pain is the cause of the night sleep is not sufficient to achieve the role of relaxation and rest, Mr. Wang is a typical example. One third of a person’s life is spent in bed, a good bed can change a person’s state of life and quality, if the home sleep is compared to an elegant and charming trilogy, then the mattress is to let the sleep gradually into the opening prelude. Choose a good mattress, for human health is very important, so what kind of bed furniture is really healthy and comfortable? As we all know, the mattress and lumbar spine is closely related. Normal lumbar spine is convex arc, if the mattress can not fit with the lumbar spine, it will cause changes in the lumbar spine arc, causing discomfort. Fat people who sleep on soft beds, will not be able to support the weight, resulting in scoliosis. By the same token, thin people sleeping on hard beds will not be able to support the lumbar spine of the convex arc, so that the muscles and ligaments are too tight, resulting in back pain. Bad sleeping posture and bedding, not only make people sleep restlessly, affecting the mood and spirit of the next day, will also increase the burden on the neck and lumbar muscles, therefore, the choice of suitable mattress is particularly important. Good mattress has two standards: one is that people are in which sleep position, the spine can keep straight stretch; two is equal pressure, people lying on the whole body can be fully relaxed. Very soft mattress seems to sleep very comfortable, in fact, the opposite. Soft spring bed or water bed will make the hips and chest back W-shaped sinking, resulting in cervical vertebrae bending forward; side lying, cervical vertebrae, lumbar vertebrae will also be over-bending to the side, so that the cervical and lumbar muscles in a state of tension, wake up in the morning will appear stiff neck and shoulders and lumbar pain. Too hard mattress people lying on it is only the head, back, hips, heels of the four points to bear the pressure, the other parts of the body does not completely fall into place, the spine is actually in a stiff and tense state, not only can not achieve the best rest effect, and sleep on such a mattress for a long time will also be detrimental to health. German ergonomics expert research results show that: whether too hard mattress or too soft mattress is not good for human health sleep, the correct mattress should be a high elasticity mattress. That is, when the force exerted on the mattress, the mattress should fall more and produce more support for the body, and vice versa. This is because the human body is a curve, only in the high elasticity of the mattress to make the human body and back are supported, especially the waist to have strong support, so that the human body ministries relax and get a full rest. As the human spine is shallow S-shaped, when lying down need to have the appropriate hardness of the support, so the elastic mattress on the human body’s comfort and sleep quality is essential. Choose a mattress can not simply rely on self-perception, too soft or too hard are not appropriate, but according to the height and weight differences. Lighter weight people sleep softer bed, so that the shoulders and hips slightly into the mattress, the waist is fully supported. And weight heavy people suitable for sleeping harder mattress, the strength of the spring can give each part of the body properly, especially the neck and waist whether to get good support.