“Study: Breastfeeding can ward off postpartum depression” (Press TV)
“Breastfeeding mothers less likely to get postnatal depression” (The Independent)
“Breastfeeding ‘helps prevent postnatal depression’” (ITV)
“Breastfeeding could help prevent postnatal depression, says Cambridge researchers” (Cambridge News)
“Breastfeeding ‘cuts depression risk’, according to study” (BBC)
“Failing to breastfeed may double risk of depression in mothers: study” (Telegraph)
“Mothers who breastfeed are 50% less likely to suffer postnatal depression” (The Independent)
“Mothers who choose not to breastfeed are ‘twice as likely to get postnatal depression because they miss out on mood-boosting hormones released by the process’” (Daily Mail, UK)
“Breastfeeding Keep Mothers Happy and Reduces Postnatal Depression” (International Business Times)
“Breastfeeding moms have lower depression risk” (Health Care Professionals Network)
“Breastfeeding protects mothers from postnatal depression, study finds” (The Australian)
And the reality:
This study aimed to identify the causal effect of breastfeeding on postpartum depression (PPD), using data on mothers from a British survey, the Avon Longitudinal Study of Parents and Children. Multivariate linear and logistic regressions were performed to investigate the effects of breastfeeding on mothers’ mental health measured at 8 weeks, 8, 21 and 32 months postpartum. The estimated effect of breastfeeding on PPD differed according to whether women had planned to breastfeed their babies, and by whether they had shown signs of depression during pregnancy. For mothers who were not depressed during pregnancy, the lowest risk of PPD was found among women who had planned to breastfeed, and who had actually breastfed their babies, while the highest risk was found among women who had planned to breastfeed and had not gone on to breastfeed. We conclude that the effect of breastfeeding on maternal depression is extremely heterogeneous, being mediated both by breastfeeding intentions during pregnancy and by mothers’ mental health during pregnancy. Our results underline the importance of providing expert breastfeeding support to women who want to breastfeed; but also, of providing compassionate support for women who had intended to breastfeed, but who find themselves unable to.
In other words, women who wanted to breastfeed and did = low risk of PPD. Women who wanted to breastfeed and couldn’t = high risk of PPD. The researchers stress “providing compassionate support for women who had intended to breastfeed but…found themselves unable to”.
This does not prove that breastfeeding cuts depression risk. It proves that women who had a goal and met it tend to have lower rates of depression. It does not prove that there is a biological reason that breastfeeding may be protective against depression. That may indeed be the case, but then the depression risk would have been similarly high in women who never intended to breastfeed.
Our societal confirmation bias is so damn strong, that we blatantly overlook the finding that suggests something potentially negative about breastfeeding promotion. But here’s something to ponder: while we can’t force insufficient glandular tissue to produce adequate milk, or force women to breastfeed who don’t want to, we CAN ensure that every mother gets support in her feeding journey. We CAN listen to research that suggests the pressure to breastfeed is contributing to feelings of guilt, shame, and judgment – a potent trifecta of emotions for those prone to depression – and do something about it. If we are going to take this one study as “truth”, as so many parenting-related studies are mistakenly interpreted, something good might as well come out of it.
At this point, there is a pretty clear correlation between not breastfeeding and PPD. Instead of using this as ammunition against formula use, we could be asking the tougher questions: Why are women who don’t breastfeed more depressed? If it is something biological, wouldn’t the rates of PPD have been skyrocketing in past generation where breastfeeding was rare? If we stop making breastfeeding seem like the only-best-right choice to raise a happy, healthy child, would it mitigate this risk?
One of my favorite quotes about research comes from the Nobel-prize winning scientist who discovered the importance of vitamin C, Albert Szent-Gyorgyi: “Research is to see what everybody else has seen, and to think what nobody else has thought.” These days, the reverse seems to be true – research is to confirm what everybody else has seen, and everybody has already thought. This needs to change, and it won’t, as long as our society and media turns even the most interesting findings into self-confirming soundbytes.