If you don't sit properly, you will get sick if you pay attention to hygiene. The wrong sitting posture is the chief culprit of some joint diseases, and the most common one is the sitting posture with legs crossed. Don't underestimate Jill Lang's legs. Jirlang's legs will make the soft tissues on the left and right sides of the spine out of balance, leading to the phenomenon of long and short legs and pelvis leaning forward, and will make your legs more and more ugly and your calves more and more stout. Therefore, we must maintain the correct sitting posture, especially for office workers who often sit for a long time. Be sure to stand up straight, keep your eyes parallel to the center line of the computer screen, and put your legs naturally. This will help us stay away from some spine and shoulder and neck diseases, and also help us avoid the appearance of small belly. Of course, you should always get up and exercise, don't sit for a long time, or often change your sitting position.