4 citations
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June 2025 in “JMIR Formative Research” In this study, researchers reported no statistically significant association between hair cortisol levels and either perceived stress or objective neuroendocrine stress measures in a predominantly male participant group.
11 citations
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February 2005 in “Clinical pharmacology and therapeutics/Clinical pharmacology & therapeutics” This study found that depression and chronic stress are highly correlated in pregnant women, suggesting different stress mechanisms modulate hair cortisol levels in depressed versus non-depressed individuals.
November 2015 in “Summit (Simon Fraser University)” In this study, significant changes in hair fiber dimensions were observed between pre- and post-operative states in males undergoing abdominal surgery, with values normalizing by the fourth post-operative week.
1 citations
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December 2021 in “American Journal of Obstetrics and Gynecology” This study observed that hair cortisol levels increased during pregnancy and positively correlated with certain systemic cytokines postpartum, suggesting potential associations with perinatal outcomes.
January 2026 in “Western Journal of Nursing Research” This study found that collecting hair samples for cortisol analysis is feasible in community-dwelling individuals with longstanding multiple sclerosis, although no significant correlation between hair cortisol levels and perceived chronic stress was observed, highlighting the complexity of stress measurement in this population.