Childhood Adversity, Self-Esteem, and Diurnal Cortisol Profiles Across the Life Span.

Autores: Samuele Zilioli, Richard B. Slatcher, Peilian Chi, Xiaoming Li, Junfeng Zhao, Guoxiang Zhao
Localización: Psychological Science, ISSN-e 1467-9280, Vol. 27, Nº. 9, 2016, págs. 1249-1265
Idioma: inglés
DOI: 10.1177/0956797616658287
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Resumen
- Childhood adversity is associated with poor health outcomes in adulthood; the hypothalamic-pituitary-adrenal (HPA) axis has been proposed as a crucial biological intermediary of these long-term effects. Here, we tested whether childhood adversity was associated with diurnal cortisol parameters and whether this link was partially explained by self-esteem. In both adults and youths, childhood adversity was associated with lower levels of cortisol at awakening, and this association was partially driven by low self-esteem. Further, we found a significant indirect pathway through which greater adversity during childhood was linked to a flatter cortisol slope via self-esteem. Finally, youths who had a caregiver with high self-esteem experienced a steeper decline in cortisol throughout the day compared with youths whose caregiver reported low self-esteem. We conclude that self-esteem is a plausible psychological mechanism through which childhood adversity may get embedded in the activity of the HPA axis across the life span. [ABSTRACT FROM AUTHOR]