While not a study, when a parent approaches me with concerns that stress will impact baby through breastmilk, I find it helpful to focus not on whether this may be chemically impacting breastmilk (something out of the control of the parent) rather on how stress can impact behavior (something often within the control of the parent) which in turn can lead to poor feeding management or infant/parent separation. I like this article: http://nativemothering.com/2015/05/stress-milk-production/ Doing a quick google search (I imagine there are more): https://www.hindawi.com/journals/apm/2012/902487/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3321510/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2082977/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4742984/ There is also: http://nautil.us/issue/31/stress/when-stress-comes-with-your-mothers-milk Heartbreaking yet inspiring are the stories of babies born in concentration camps who were breastfed - there's a film and book which discusses this. https://www.youtube.com/watch?v=1HRioTITvyE Not breastfeeding related, but this possibly suggests stress can have positive impacts when harnessed https://www.ted.com/talks/kelly_mcgonigal_how_to_make_stress_your_friend Ellen Ellen Rubin, MA, IBCLC, LLLL *********************************************** Archives: http://community.lsoft.com/archives/LACTNET.html To reach list owners: [log in to unmask] Mail all list management commands to: [log in to unmask] COMMANDS: 1. To temporarily stop your subscription write in the body of an email: set lactnet nomail 2. To start it again: set lactnet mail 3. To unsubscribe: unsubscribe lactnet 4. To get a comprehensive list of rules and directions: get lactnet welcome