"Breast-Fed Kids May Be Less Hyper, But Not Necessarily Smarter, Study Finds " The Salt : NPR

"
for all these variables, breast-feeding was associated with better cognitive development outcomes almost across the board.
But when they accounted for all these socio-economic variables, the stand-alone effect of breast-feeding seemed to disappear.
The exception to this was the positive benefit of..."

http://www.npr.org/sections/thesalt/2017/03/27/520963053/breast-fed-kids-may-be-less-hyper-but-not-necessarily-smarter-study-finds

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