Whether losing weight is effective is not measured by sweating. Maybe you think sweating will be more effective, but it's just a psychological feeling. As long as aerobic exercise lasts for more than 30 minutes, you will basically start to lose fat. Duoyan Zheng series lasts about 30 minutes per class, which is a good exercise to reduce fat. It's best to dance different bars every day and do it with whole body oxygen. It is useless to practice the same muscle every day, and the effect will be better if you do it alternately.
If you don't eat dinner and do aerobic exercise, it's very bad for your health. Without enough protein, your body will also reduce the metabolism of fat. There is a lot of information on the internet, you can look it up yourself.