Pestle 04:52 AM 02-21-2017
http://www.slate.com/articles/health...ittle_bit.html
"[It] certainly sounds logical: Soothing an infant to sleep all the time could make it more difficult for the infant to self-soothe later. But the causality might also work in the other direction: Difficult toddlers may have been difficult infants. Without data, we can’t know.
In the end, this AAP recommendation isn’t based on data, it’s based on expert opinion. And expert opinion has an important but controversial role in medicine."