The reason new babies cry so much at night has finally been revealed, and no, it isn’t because they haven’t read the routine.
Every mother has spent countless hours trying to figure out why their baby is crying. We’re presented with so many theories and explanations and it all comes down to some kind of responsibility on our part:
They are hungry;
They are tired;
They are over-stimulated;
They are absorbing your stress and tension;
They are releasing emotion;
They have a dirty nappy;
They are used to sleeping during the day when being rocked in their mother’s tummies therefore are used to being awake at night;
They communicate through crying because they can’t speak yet.
Some of these reasons are valid - hungry, wet nappy - but as all parents know, babies cry for seemingly no reason at all, often at night, and it's one of the most difficult parts of parenting. But it's not because you're doing anything wrong and it's not because your baby isn't happy. It turns out the reason babies cry so much at night all comes down to primitive survival instincts.
Researchers at Harvard University claim the real reason babies cry frequently at night is to stop their parents from producing competitive offspring. This increases their chance survival.
Professor David Haig from Harvard University presented his theory in the May edition of the journal Evolution, Medicine, and Public Health. He says newborns wake every two to four hours for the first eight weeks and every four to six hours after that so they increase the frequency of breastfeeding which naturally prevents ovulation.