After losing weight, many changes will take place in your body. First of all, weight loss, that is, the reduction of body fat content, leads to weight loss. This is usually caused by health behaviors such as losing weight, controlling diet or increasing exercise. Secondly, losing weight can reduce weight, reduce joint burden and prevent joint diseases. In addition, obesity is the cause of many chronic diseases, such as hypertension, diabetes and heart disease. Losing weight can reduce the risk of these chronic diseases.