You can consider doing sit-ups+hula hoop+cassia seed tea. However, sit-ups also require skill. Don't do the actions of the past exam. Stopping for a few seconds when the upper body forms an angle of about 40 degrees with the bed board is more effective than the quick elbow-knee movement, but this effect is actually very slow and takes a long time to maintain. I suggest you go to Aiyun Oriental, where the weight loss effect is really good.