It has always been generally believed that assisted reproductive therapy will affect children's cognitive ability and developmental ability. Through research, it is proved that this is not the case. Even if IVF is not smarter, there is no evidence that it is worse than a naturally conceived baby. The influence of family is the key factor to determine children's cognitive development. Instead of worrying about the disadvantages of IVF itself, we should strive to improve ourselves and give our children a better living environment.