This sport is suitable for office workers, whether in the office or on the sofa floor. You can do it after lunch. First of all, lie prone, relax your shoulders and put your hands on your hips. The specific method is to close your chin first and slowly raise your upper body by about 35 degrees. Then slowly lower the upper body and return to the preparatory action. Do 20 upper body lifts at a time, not too fast. It should be noted that the tilt angle should not be too large, not more than 35 degrees, which will hurt the spine. As long as you keep doing it for half a month, it will have an effect.