If you have a bad waist, you can't sit for a long time. Sedentary can easily lead to aggravation of lumbar spondylosis. After sitting for an hour, you must stand up, take a walk and exercise.

Don't keep a posture for a long time at ordinary times. It's best to stand up and walk for a while every hour. Stretching has a good effect on stretching the waist, exercising bones and muscles and relaxing the spine.