Fitness people always wrap the waist, abdomen, thighs and other parts that are easy to accumulate fat with plastic wrap before fitness. The short ones will be wrapped in an hour or two of continuous exercise, and the long ones will cover three or four hours. When asked about the feeling of wrapping, most people told reporters: "It's really stuffy, hot and uncomfortable to wrap with plastic wrap, but it's obviously more sweaty after exercise than where it's not wrapped."

Wang Li, deputy director of the Plastic Laser Medical Beauty Center of the First Hospital of Jiaotong University, said that it is unscientific to lose weight with plastic wrap, and it is impossible to lose weight fundamentally. Wrap the body with plastic wrap, because the local temperature rises, it is easy to remove the water from fat cells and other tissue cells, but this does not consume fat. After drinking water and eating, your body will recover. Deputy Director Wang said that wrapping the body with plastic wrap for a long time will make the skin unable to dissipate heat and make sweat accumulate locally, which will easily cause eczema, folliculitis and other skin diseases. In addition, plastic wrap itself is a chemical substance, which is easy to cause skin allergies and harm to the body.