By taking antiretroviral drugs during pregnancy, this Tanzanian mother lowered the risk of passing HIV to her daughter. Siegfried Modola/AFP/Getty Images hide caption

itoggle caption Siegfried Modola/AFP/Getty Images

A guinea pig does its part for science and human relations by sitting on the lap of an autistic child. Erin Burnett/Courtesy of Maggie O'Haire hide caption

itoggle caption Erin Burnett/Courtesy of Maggie O'Haire

Donta Jackson's snack of choice is a bag of Skittles. Brett Myers/Youth Radio hide caption

itoggle caption Brett Myers/Youth Radio

A poll needs to ask about randomly selected children in households across the country to bring context to what's happening with kids like 7-year-old Henry Condes in Los Angeles. David Gilkey/NPR hide caption

itoggle caption David Gilkey/NPR

From left: 8-year-old Celedonia, 3-year-old Gavin, Amy Spencer and Doug Brown gather around the kitchen as Doug prepares a fruit salad for dinner. Maggie Starbard/NPR hide caption

itoggle caption Maggie Starbard/NPR

For some kids who grow up in poverty, the bond developed with Mom is especially important in dealing with stress. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Giancario Gemignani-Hernandez, 2, of Pittsburgh has his ear examined by Dr. Alejandro Hoberman. Gene J. Puskar/AP hide caption

itoggle caption Gene J. Puskar/AP

Have a talk about avoiding drug use early and often. And don't overshare. iStockphoto.com hide caption

itoggle caption iStockphoto.com