This model of a molar shows color-coded barium banding patterns that reveal weaning age. Ian Harrowell, Christine Austin, Manish Arora/Harvard School of Public Health hide caption

itoggle caption Ian Harrowell, Christine Austin, Manish Arora/Harvard School of Public Health

Some insurers prefer to pay for manual breast pumps, but some working moms prefer more expensive, electric models. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Ashley Beecher, 29, and her daughters Annie (on lap) and Charlie. After feeding Annie, Beecher donates her extra supply to the human milk bank at Texas Children's Hospital. KUHF hide caption

itoggle caption KUHF

A nurse burps a baby after he's been fed, circa 1955. Doctors say that for babies with extreme reflux, off-label use of heartburn drugs can sometimes help. But frequently changes to the mother's diet can be a simpler fix. George Heyer/Three Lions/Getty Images hide caption

itoggle caption George Heyer/Three Lions/Getty Images