The study also mentions that the eldest son's body has a low ability to process sugar so it will be easily affected by diabetes. This is because while it is undergoing a process of first pregnancy, the placenta is a liaison food intake of the mother to the fetus is in its best period.
This means that the eldest child is conceived 'programmed' to get easy food intake resulting in weight gain. If the 'program' to continue into the teenage years, it is not likely your baby can potentially suffer from obesity can also lead to heart disease and diabetes.
The study, written in the journal Scientific Reports is also suggested to pregnant women to really pay attention to the foods they eat during pregnancy. Because your baby's weight gain is important, but the health of their bodies in the future that is more important.
A surprising study conducted at Wayne Cutfield, of the University of Auckland found that those who were born as the eldest son or eldest child more prone to obesity. Not just obesity, they also have the potential of developing heart disease.