breast milk
Babies born prematurely are at risk of eye damage and, in severe cases, permanent blindness. Treatments can help. And human milk looks like it helps, too. iStockphoto hide caption
The number of women buying, selling and sharing breast milk is growing rapidly. But it can be a risky purchase, scientists say, because a mom can't tell by looking at the milk whether it's safe and nutritious for her baby. iStockphoto hide caption
Newborn in an incubator at Greytown Hospital in South Africa in 2009. Wendy Stone/Courtesy of PATH hide caption
A lab technician at the Mothers' Milk Bank Northeast in Newton Upper Falls, Mass., prepares donated breast milk for pasteurization in August 2012. The process kills harmful bacteria. Elise Amendola/Associated Press hide caption