Mechanics of breastfeeding

New ultrasound video (above) shows that infants create a vacuum to suck our the milk rather than pressing or squeezing the milk out.  It also may show why breastfeeding is so painful for some women, like me.  "They're strong suckers," said Donna Geddes, Research Assistant Professor, School of Biomedical, Biomolecular and Chemical Sciences.  Some babies also crunch too hard on the nipple. This information could lead to design of new aids to help new moms with this problem.