Both cervical vertebra and lumbar vertebra have normal physiological curvatures, which are protruding forward, which can effectively maintain the stability of cervical vertebra and play a very important supporting role in human activities. Long-term bending, sedentary, and excessive bending will lead to changes in the physiological curvature of the lumbar spine, and the curvature of the lumbar spine will become straight. Most of this situation can still be effectively restored. First of all, we should actively correct the waist posture, avoid keeping a posture for a long time, change the posture regularly, and be sure to avoid sitting for a long time. No matter sitting, standing or walking, the posture should be like a soldier, and it is forbidden to bend over and carry loads. Exercise back muscle function properly, such as three-point support, five-point support, swallow flying and so on. And fix the waist circumference when sitting or standing, and take it off when resting in bed. When resting in bed, a cylindrical object with a suitable diameter can be placed on the back of the waist, which also has a positive effect on restoring the curvature of the lumbar spine.