January 2018 in “Digital Scholarship - UNLV (University of Nevada Reno)” This study found significantly higher hair cortisol concentrations in black children compared to white children aged 1-4 years, suggesting racial differences in cumulative stress as measured by hair cortisol.
85 citations
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January 2014 in “Hormone Research in Paediatrics” This study found that hair cortisol concentrations can be reliably measured in healthy children and generally increase with age, unaffected by gender, puberty, or hair care practices.
This study found that hair cortisol concentrations in mother-daughter pairs are a potential biomarker for cortisol responses to chronic stress, with daughter-mother similarities affected by parenting styles and children's symptoms.
122 citations
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October 2013 in “PEDIATRICS” This study observed that cortisol concentrations in hair, indicating prolonged stress, are correlated between mothers and young children, suggesting potential heritable traits or maternal influence.
This study found that a hair growth rate of 0.75 cm/month better matches retrospective cortisol timelines and identified factors influencing hair cortisol content in children and adolescents.