January 2026 in “Psychoneuroendocrinology” Self-collected hair samples can measure stress but may need adjustments for accuracy.
January 2026 in “Western Journal of Nursing Research” Hair cortisol levels don't reliably indicate chronic stress in people with multiple sclerosis.
12 citations
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December 2020 in “Comprehensive psychoneuroendocrinology” Hormone levels in hair change during pregnancy, with progesterone increasing significantly compared to non-pregnant women.
2 citations
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December 2022 in “Metabolites” Hair analysis shows low progesterone in anorexia patients, unchanged by short-term weight gain.
8 citations
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October 2020 in “Infant behavior & development” Collecting hair for cortisol analysis is possible in low-income mother-toddler pairs.