Personally, I think Duoyan Zheng aerobics is easy to learn. The first set of aerobics seems to have lasted for 37 minutes. Whether it's winter or summer, I always sweat a lot after I finish. If I want to reduce my abdomen, the fourth set may be better, that is, sitting on the ground and practicing for about ten minutes. As a result, I felt a little pain in my abdomen after getting up the next morning, and I felt it was effective. You can go and have a look if you are interested. I wish you success in losing weight.