1.
J Pediatr
; 154(3): 452-4, 2009 Mar.
Artigo
em Inglês
| MEDLINE
| ID: mdl-19874763
RESUMO
The effect of feeding method on stress hormone levels in infants is unknown. We studied infants from birth to 1 year and found salivary cortisol 40% higher in breast-fed infants compared with formula-fed infants. The higher cortisol levels among breast-fed children may be involved in the analgesic effect of breastfeeding.