Studies show long hours in daycare lead to high cortisol levels, harm children's emotional development.
A 2008 report from UNICEF's Innocenti Office of Research investigated the effects of daycare on children in the world's richest and most developed countries.
Psychotherapist Susan Gerhardt said, "What seems to be most crucial for the baby is the extent to which the parent or caregiver is emotionally available and present for him, to notice his signals and to regulate his states."
"The baby’s mother is primed to do these things for her baby by her own hormones, and is more likely to have the intense identification with the baby’s feelings that is needed, provided she has the inner resources to do so.
"Babies come into the world with the need for social interaction to help develop and organize their brains.
"If they don’t get enough empathetic, attuned attention – in other words, if they don’t have a parent who is interested and reacting positively to them – then important parts of their brain simply will not develop as well."
A child's ability to self-regulate is a result of parent-child interactions..