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Expectant mothers are inundated with information about the benefits of breastfeeding for their babies but are often poorly informed about the consequences breastfeeding has for their own mental and physical health. Women know about the potential benefits of breastfeeding for the baby’s immune function and intellect (Kramer et al., 2001; Kramer et al., 2008), but mothers could also be asking themselves: What about me? A deep desire to breastfeed an infant is not shared by every mother. In fact, even before the advent of bottles and formula, many affluent women avoided breastfeeding altogether by paying poorer women to do it for them in an arrangement called wet-nursing. As the anthologist Sarah Hrdy (1992) noted,“during the heyday of wet-nursing at the end of the 18th century... up to ninety percent of infants born in urban centers such as Paris and Lyon were nursed by women other than their biological mother”(p. 415).