Avoid bad posture 1, frequent computer users should pay attention to the correct sitting posture, that is, keep the waist straight, waist and thighs to maintain 90 ° angle, thighs and calves to maintain 90 ° angle, and the upper limbs of the upper arm and forearm also need to maintain 90 ° angle, that is, to maintain the standard sitting posture of three 90 °; 2, watching television should also have the correct sitting posture, waist and back straight, if necessary, placed between the waist and sofa backrest a moderate size 3, motorists should also add a soft pillow between the waist and backrest to reduce the pressure on the waist; 4, avoid bending to lift heavy objects, as far as possible, squatting instead of bending, lifting heavy objects with even force; 5, the family use of wash basin, wash basin height to be set reasonably, if the height is low, when using often need to bend forward, increasing the pressure on the waist; 6, the bed furniture is not too soft or too soft. 6, the bed should not be too soft or too hard, hardness to supine palms into the waist just under the appropriate effort; 7, try to avoid sedentary. Appropriate relaxation and exercise After working or driving for an hour, it is best to move around, shrug your shoulders and stretch your back to do relaxation exercises, soothe the joints and muscles of the waist. Strengthen self-exercise, all exercise methods are based on the principle of lumbar extension. For example: when standing with arms crossed waist upper body rear extension; or do swallow pose, that is, prone in bed, abdomen and pelvis close to the bed, the upper body and both lower limbs as far as possible to lift off the bed; or swimming to take the breaststroke position. In general is to pay attention and exercise, can not be sedentary, reduce bending, weight bearing, pay attention to warmth can not be cold, to sit straight, sit high, sit right, enhance the exercise of the low back muscle.