June 2020 in “Authorea (Authorea)” This study observed that pregnant women experienced an increase in hair cortisol concentrations, with primiparae having significantly higher levels in the last trimester compared to multiparae.
501 citations
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October 2008 in “Psychoneuroendocrinology” This study suggests that cortisol measured in human hair can effectively reflect increased production for up to six months, but its retrospective accuracy may be limited due to rapid decline in levels.
3 citations
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November 2021 in “Stress” This study found that school-related stress increases hair cortisol in girls and alters hair testosterone and cortisol levels in boys, indicating gender-specific hormonal responses to environmental changes.
7 citations
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October 2015 in “American Journal of Primatology” The researchers observed that pregnancy in rhesus monkeys was associated with an increased incidence of hair loss, though the underlying reasons remain unclear.
47 citations
,
September 2016 in “Reviews in endocrine and metabolic disorders” This review discusses the steroidogenic properties of human skin and suggests that impaired steroidogenesis may be linked to conditions like acne, rosacea, atopic dermatitis, and androgenic alopecia, but reports no new clinical results.
