Because people with congenital obesity are inherited and obesity is the result of gene expression, even if they don't eat much, the calories they consume are mainly converted into fat accumulation. Acquired obesity is caused by excessive calorie intake, irregular work and rest, disorder of hormone secretion and serious lack of exercise. As long as these factors leading to obesity are improved, we can lose weight successfully. However, people with congenital obesity need stricter diet control and more exercise to lose weight, and this is only a temporary solution, after all, these can not change the expression of obesity genes.