3 citations
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January 2012 Hair cortisol analysis shows sweat affects cortisol levels, and severe OSA may increase stress, but CPAP treatment doesn't significantly reduce physiological stress.
April 2020 in “Journal of the Endocrine Society” Hair cortisol measurement can help diagnose and monitor Cushing’s disease.
May 2012 in “Neurotoxicology and Teratology” Hair cortisol can be a reliable way to measure long-term stress.
2 citations
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January 2009 The procedure reliably measures cortisol in rhesus macaque hair.
Measuring cortisol in hair can help assess adrenal function in asthmatic children using inhaled corticosteroids.
July 2020 in “Endocrine practice” A 13-year-old boy with Cushing syndrome has high cortisol levels from a pituitary gland issue and underdeveloped sexual characteristics.
43 citations
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January 1999 in “Endocrinology” Cortisol increases a specific protein in bone cells, which may help explain its negative effects on bone.
44 citations
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February 2016 in “Zoology” Hair cortisol levels in primates are useful for stress assessment but vary by age, sex, species, and hair collection methods.
Hair cortisol may help identify adrenal insufficiency in sickle cell disease patients.
February 2020 in “VSNU Open Access deal” Hair cortisol levels change with age, starting high at birth, decreasing until age 6, then rising to adult levels by age 18.
217 citations
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July 2009 in “Experimental and Clinical Endocrinology & Diabetes” Hair analysis can track past cortisol levels in Cushing's Syndrome patients.
1 citations
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December 2021 in “American Journal of Obstetrics and Gynecology” Hair cortisol levels peak in the third trimester and decline postpartum.
2 citations
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December 2021 in “Scientific reports” Scalp hair sweating is a significant predictor of hair cortisol levels.
76 citations
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October 2011 in “Clinica Chimica Acta” Hot water and UV exposure reduce hair cortisol levels, with the back of the head showing the most consistent levels.
30 citations
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July 2016 in “Psychoneuroendocrinology” 489 citations
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June 2005 in “The FASEB Journal” Human hair follicles can produce cortisol like the body's stress response system.
April 2026 in “Comprehensive Psychoneuroendocrinology” Hair cortisol levels may be linked to stress, but results are inconsistent.
122 citations
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October 2010 in “Clinica Chimica Acta” Washing hair with water or shampoo lowers cortisol levels in hair.
21 citations
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January 2016 in “NeuroImmunoModulation” Hair cortisol levels can indicate stress over the past three months.
11 citations
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February 2005 in “Clinical pharmacology and therapeutics/Clinical pharmacology & therapeutics” Hair cortisol could be a marker for chronic stress in pregnancy, but depression affects cortisol levels differently.
December 2025 in “Biology Bulletin Reviews” Hair cortisol can indicate animal stress but varies with many factors.
7 citations
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May 2021 in “General and comparative endocrinology” Muskoxen's qiviut cortisol levels indicate their stress hormone activity over the hair growth period.
April 2026 in “Journal of Experimental Psychopathology” Hair cortisol levels may not reliably indicate psychological distress.
March 2015 in “DergiPark (Istanbul University)” Basal serum cortisol levels don't help diagnose adrenal issues in vitiligo patients.
November 2025 in “Contraception” COC use doesn't increase hair stress hormone levels, but hair treatments may affect results.
January 2018 in “Digital Scholarship - UNLV (University of Nevada Reno)” Hair cortisol levels can indicate chronic stress in children, with differences seen between races.
February 2026 in “TURKISH JOURNAL OF VETERINARY AND ANIMAL SCIENCES” Hair cortisol is better than blood cortisol for measuring long-term stress in pregnant goats.
July 2017 in “PPmP - Psychotherapie · Psychosomatik · Medizinische Psychologie” Girls with anorexia nervosa have lower hair cortisol levels, indicating possible hormonal changes.
May 2026 in “Research Square”