Even though it is true that the physiological characteristics of the parents can influence the development of the child's gender, in most cases it is conjecture. There are many studies that confirm that a woman's heavier weight means she is more likely to give birth to boys because they need more nutrients. While the part about nutrients is true, a pregnant woman's weight has no bearing on the gender of the developing fetus. It is also often talked about the age of the parents, which can indicate whether it will be a girl or a boy. Again, the hormonal changes in the parents' body caused by their age can influence the child's gender in a certain way, but it is not a decisive factor.\r