A new research has revealed that heavier babies at birth score high in their elementary and middle school as compared to the ones having lower weight. According to new Northwestern University research, birth weight makes a difference to a child’s future academic performance. David Figlio, director of Northwestern’s Institute for Policy Research (IPR) said that it was not necessary that healthier babies have a fully formed brain, but if fetus stays in mother’s womb for a longer period and gain weight then it would have a better cognitive development.
The relationship was apparent even among twins; heavier-born twins have higher average test scores in third through eighth grade than their lighter-born twin. Factors like families having better earnings, improved maternal nutrition and reduced maternal stress effects baby’s birth weight.