Are breast-fed infants more resilient? Feeding method and cortisol in infants.

Cao, Yang; Rao, Sanmati D; Phillips, Terry M; Umbach, David M; Bernbaum, Judy C; Archer, Janet I; Rogan, Walter J · J Pediatr · 2009

prospective_cohort · Level II

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Abstract

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.

Medical subject headings