Health, babies wake up at night to feed in order to delay the birth of siblings

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Health, babies wake up at night to feed in order to delay the birth of siblings

Children who wake up during the night to be breastfed they do for a reason beyond suspicion: delay the birth of a sibling. And 'the idea of ​​a new study published in the journal' Evolution, Medicine and Public Health ', under which children who wake up frequently during the night to be fed not only hungry, but are' plotting 'to delay the resumption of 'Mother ovulation, thereby preventing the birth of a brother with whom should compete. E 'already' been widely documented by science that short intervals between births of brothers are associated with mortality rates 'more' high of children, especially in contexts where resources are limited and the high rates of infectious diseases. Research conducted by David Haig University 'Harvard believes that the benefits of the delay of subsequent births have been such as to allow the selective pressures over time to be strong enough to generate a significant evolutionary response.