Avoid injury to the waist, pay attention to maintenance The lumbar spine is similar to the human knee joint, with its own life span, as we age, once 20 years old, the lumbar intervertebral discs begin to degenerate. How to maintain their lumbar spine? Avoid doing the following actions that hurt your back. Then pick up those habits that hurt the waist in our normal life: 1, sedentary The pressure of the human lumbar intervertebral disc standing is twice that of lying down, and the pressure of sitting is four times that of lying down. In the daily work, many cases are long sitting in front of the computer, especially the use of laptop, often in order to see clearly a very small screen, leaning forward bending waist, which is more pressure on the lumbar spine, often time on, resulting in lumbar disc protrusion. It is recommended that again in daily life, did not work 1 hour to get up and move for 5 minutes. If there are no other lumbar diseases, you can carry out simple to not flexion and extension, rotation, and left and right side bending exercises indoors. Can promote the whole body muscle joint relaxation. 2, sit-ups Many people use sit-ups to exercise the abdominal muscles, but do not know that sit-ups can bring harm to the lumbar spine, because sit-ups are not simply rectus abdominis in the force, many times is the iliopsoas muscle in the role of the lumbar spine in front of the iliopsoas muscle, behind the role of the erector spinae, before and after the imbalance, it will occur lumbar instability, lumbar discomfort, long-term induced lumbar disc herniation. 3, wear high heels Many white-collar workers will wear high heels when they go to work. I do not know, after wearing high heels, the body’s center of gravity changes, in order to stabilize the center of gravity changes and the original balance lost, the lumbar spine back extension enhancement, that is, overstretching, over time, will cause excessive contraction of the lumbar muscles and lumbago, the heel height increases 1cm, the contraction of the lumbar back muscles and the lumbar spine back extension will increase exponentially, so that the risk of lumbar herniation will also greatly increase. 4, sleeping mattress is too soft much soft mattress in the human body weight pressure to form the middle low, both ends high, thus affecting the normal physiological curvature of the lumbar spine, resulting in lumbar muscle ligament contraction, tension and spasm, over time will damage the lumbar muscles and lumbar spine. 5, sitting in a short sofa soft texture of the sofa, the location of the shorter sofa will allow the person’s hips sink, the body nesting, due to the position of the knees above the waist, the back arch, the lumbar muscles will be stretched, so the burden will be great, long-sitting lumbar muscle fatigue, causing lumbago. 6, standing long jump standing long jump in the jump and landing on the lumbar impact, if the usual muscle strength is not enough or lumbar spine instability, often induced lumbar disc herniation. 7, half lying watching TV half lying, lumbar suspension, lumbar vertebrae in a folded state, no support, the weight of the upper body all pressed on the lumbar vertebrae on this point, standing, lumbar muscles and ligaments will help lumbar vertebrae, half lying muscle is relaxed, lost the original fixed role, the spine deformation, over time will cause lumbar disc herniation.