International health insurance customers might want to discuss the issue of breastfeeding with their doctors if they are considering having a child.
According to recent research from Oxford University, infants who are breastfed for at least four months are less likely to show behavioural problems in childhood.
Indeed, of the 10,000 mothers and babies monitored, just six per cent who were breastfed showed behavioural issues like anxiousness, clinginess, restlessness and lying or stealing by the age of five.
Meanwhile, 16 per cent of those who were formula-fed had these kinds of problems.
Commenting on the issue, Maria Quigley from the university told the BBC: "We just don't know whether it is because of the constituents in breast milk, or the close interaction with the mum, or whether it is a knock-on effect of reduced illness in breastfed babies.
"But it does begin to look like we can add fewer behavioural problems as another potential benefit of breastfeeding."