What are the common bad posture in daily life? Experts say that the most common bad posture includes the following four categories: long time the same position to use the computer or play mahjong, long time leaning or curled up in the sofa to watch TV or read books, bending over and suddenly force to move heavy objects, do housework or wash the body leaning forward for too long. How to correct these bad postures, prevention of low back pain occurs? We suggest: 1, in daily life, often sitting people should pay special attention to the correct sitting posture. Correct sitting posture is the waist straight, waist and double thighs to maintain a 90-degree angle, double thighs and double calves to maintain a 90-degree angle, and the upper limbs of the upper arm and the forearm also need to maintain a 90-degree angle, that is, to maintain three 90-degree standard sitting posture. In addition, in daily life, try to avoid the same position for a long time to use the computer or play mahjong, etc., every hour you can stand up and do a backward bending movements. 2, leaning on the sofa to watch TV, the correct sitting position is: in the back and sofa backrest placed between a moderate size of the pillow, try to avoid back flexion or half-sitting in the sofa. 3, sleep should try to sleep on a hard bed, take the side position and supine position alternating sleeping position, to avoid frequent flexion of the waist and back. 4, in lifting heavy objects, you should take the correct posture, that is, the first knee flexion pulp, back as straight as possible. Do not directly bend over to move heavy objects, in order to prevent causing supraspinous interligamentous ligament injury, small joint disorder or lumbar disc herniation. 5, when doing housework, the body should not lean forward for too long, but also every hour to do a backward bending of the waist.