From Katie Allison Granju: "New research: Lack of breastfeeding doubles risk of SIDS."
Hopefully, if the information gets out and is really internalized by pediatricians, this will help convince many on-the-fence mothers, and those who struggle with difficulties getting breastfeeding started, to hang in there at least for the window of time that's most important for SIDS prevention: four to six months after birth.
By the way, in case you were wondering, "Didn't we know that already?", the new study appears to demonstrate causality, not just correlation.
