Your child may not just be hungry in the middle of the night, they have a plan...A DEVIOUS PLAN...To do whatever is necessary to stop you from having another child!

Researchers at Harvard University say babies are programmed to monopolise their mother's attention – and making parents too tired  for a romantic night together. Breastfeeding at night also extends a mother’s post-birth infertility, further preventing future brothers and sisters.

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The study’s lead author, Professor David Haig says, in areas where resources are scarce, babies fare better when there is a longer interval between siblings. He says, natural selection would have preserved the sleeping behaviors of babies who benefited from the delay of the next birth.