But there were important hormonal differences between the two strategies. (idmprogram.com)
The study also found that mothers who were breastfeeding were more responsive on a brain level than mothers who were formula feeding; that's not to say that they were «better» mothers, but only that there were slight hormonal differences, perhaps necessary for milk production and regulation. (verywellfamily.com)
To be sure, previous research has found that young children who have been neglected in massive eastern European nurseries exhibit early developmental and even hormonal differences compared with their noninstitutionalized peers, but the six - to 12 - year - old children in the new study — many of whom had been in institutions since early childhood and infancy — appeared to be doing relatively well. (scientificamerican.com)