Useful! Sweating will lose weight, exercise will lose weight, and sweating after exercise will definitely lose weight. As long as you insist, hehe, my legs used to be thick. I used to run and jump rope with plastic wrap every day, and I lost 6 pounds a month, mainly because my legs became thinner. The effect is very good! Although the process is a little hard, believe me, as long as you persist, you will definitely get the results you want.