A great reason to surround ourselves with people we feel good with! Which of course, has implications for birthing women. Midwives have to be good to be around. Birthing women need to be surrounded by people they love and who love and support them for optimal psychophysiological functioning, which includes not only oxytocin release, but includes the endogenous opiods. So, it can be seen, that not just enemies make things worse, but anyone who is not fully 'present' for the woman in labour, therefore setting off her 'alarm' system, can make things worse.
If Loved Ones Lessen Our Perceptions of Pain, Do Enemies Make Them Worse? Sarah Master Answers - Science and Religion Today