Exactly why such stimulation works isn't known, experts say, but a similar procedure has been shown in animal studies to help improve learning and memory.

WSJ: A Gut Check for Many Ailments

In the case of Caesareans, knowing how to prepare for the procedure, being aware of the opportunities open to them during surgery, learning alternative positions for breastfeeding and ways to improve recovery can all radically improve the experience for many women, even if a Caesarean was not their original preference.

BBC: Antenatal advice 'perpetuates C-section myths'