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Updated: Feb 24, 2026

Psychophysiological Assessment of the Effectiveness of Emotion Regulation Strategies in Childhood
Published on: February 11, 2017
Children's physiological responses to childcare
Harriet J Vermeer1, Marleen G Groeneveld1
1Centre for Child and Family Studies, Leiden University, P.O. Box 9555, 2300 RB Leiden, The Netherlands.
Insights
Children
Area of Science:
- Pediatric Health
- Developmental Psychology
- Childcare Research
Background:
- Children's physiological stress responses, particularly cortisol levels, are elevated in out-of-home childcare settings compared to home environments.
- Existing research consistently shows higher cortisol levels in children attending childcare.
- Understanding factors influencing these stress responses is crucial for child well-being.
Purpose of the Study:
- To review recent evidence on correlates of elevated cortisol levels in children during out-of-home childcare.
- To examine the impact of childcare characteristics and child-specific factors on physiological stress.
- To highlight advancements in stress biomarker analysis and suggest future research directions.
Main Methods:
- Review of recent scientific literature on children's physiological responses to childcare.
- Analysis of studies examining cortisol levels in relation to childcare quality, group size, care type, and child characteristics.
- Inclusion of research utilizing hair cortisol analysis and immunomarkers of stress.
Main Results:
- Childcare quality is a significant correlate of elevated cortisol levels; higher quality care is associated with lower stress.
- Group size and type of care (e.g., center-based vs. home-based) do not appear to significantly influence cortisol levels.
- Elevated cortisol at childcare is more pronounced in toddlers than infants, and in children exhibiting inhibited or aggressive behaviors.
Conclusions:
- Childcare quality is a critical factor influencing children's physiological stress responses.
- Certain child characteristics, such as age and temperament, moderate stress levels in childcare.
- Further experimental and longitudinal research is needed to establish causality and investigate long-term health and developmental impacts.
Abstract:
This review focuses on children's physiological responses to out-of-home childcare. The finding that children's cortisol levels are higher at childcare than at home has been well-replicated. Here we summarize recent evidence examining possible correlates of elevated cortisol levels. Reviewed studies suggest that childcare quality matters, whereas group sizes and type of care do not. As for child characteristics, elevated cortisol at childcare is more pronounced in toddlers than in infants, and in inhibited and aggressive children. We discuss recent advances focusing on hair cortisol analysis and immunomarkers of stress, and suggest that there is a need for experimental and longitudinal studies to examine causal relations and possible negative long-term consequences for children's health and development.
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