1 citations
,
September 2016 in “Brain Behavior and Immunity” Hair cortisol levels can indicate stress and are affected by washing frequency, not cosmetic treatments.
217 citations
,
July 2009 in “Experimental and Clinical Endocrinology & Diabetes” Hair analysis can track past cortisol levels in Cushing's Syndrome patients.
5 citations
,
May 2021 in “Veterinary medicine and science” Injecting cosyntropin into grizzly bears increases blood cortisol but doesn't change hair cortisol levels.
July 2011 in “Neurotoxicology and Teratology”
May 2016 in “Endocrine Abstracts” Proximal hair cortisol is a reliable tool for diagnosing Cushing's Syndrome.
November 2025 in “Anxiety Stress & Coping” Higher anxiety symptoms and social behavior affect stress levels in hair.
October 2008 in “Experimental and Clinical Endocrinology & Diabetes” Long-term unemployment leads to higher stress levels.
43 citations
,
January 1999 in “Endocrinology” Cortisol increases a specific protein in bone cells, which may help explain its negative effects on bone.
16 citations
,
August 2007 in “Histopathology” A woman's rare adrenal tumor caused high testosterone and cortisol levels, which normalized after the tumor was removed.
July 2024 in “Occupational Medicine” Higher cortisol levels are linked to poor coping, while higher DHEA levels are linked to job confidence.
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.
65 citations
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December 1986 in “The Journal of Clinical Endocrinology & Metabolism” The woman had a genetic condition causing high cortisol and androgen levels, treatable with dexamethasone.
February 2026 in “Brazilian Journal of Implantology and Health Sciences” Chronic stress and high cortisol levels can cause hair loss by disrupting hair growth.
5 citations
,
May 2017 in “Journal of the European Academy of Dermatology and Venereology” The study found no significant difference in stress hormone levels between people with alopecia areata and healthy individuals, suggesting that the disease is not caused by an overactive stress response system.
April 2026 in “Journal of Experimental Psychopathology” Hair cortisol levels may not reliably indicate psychological distress.
April 2025 in “Journal of the Faculty of Medicine Baghdad” Alopecia areata patients may have higher T3 and cortisol levels, suggesting a hormonal link.
June 2025 in “Journal of Kufa for Chemical Sciences” Higher adrenaline and prolactin levels may indicate stress-related alopecia areata in adults.
April 2020 in “Journal of the Endocrine Society” Hair cortisol measurement can help diagnose and monitor Cushing’s disease.
Depressed teens have different steroid levels in urine, which may help identify and treat them.
January 2012 in “CINECA IRIS Institutial Research Information System (University of Genoa)” Hair cortisol reliably indicates stress in rabbits.
January 2026 in “Universität Zürich, ZORA”
July 2024 in “Nursing Research” Hair and nail cortisol levels can show long-term stress in young males.
10 citations
,
November 2018 in “Developmental Psychobiology” Hair can effectively measure DHEA and testosterone levels in children.
October 2025 in “Journal of the Endocrine Society” Surgery improved symptoms and normalized hormone levels in a woman with an adrenal tumor.
3 citations
,
January 2011 in “International journal of trichology” Low DHEA-S levels might be linked to alopecia areata and could be a potential treatment target.
47 citations
,
January 2016 in “MethodsX” Hair cortisol analysis is a reliable tool for monitoring long-term stress in captive chimpanzees if certain variables are controlled.
November 2022 in “Innovation in aging” Older adults in Puerto Rico often couldn't be tested for hair cortisol due to refusal or lack of hair, with race and hair products affecting results.
95 citations
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September 1979 in “Acta Paediatrica” Girls have higher DHEA levels earlier in puberty than boys, indicating earlier development.
January 2026 in “Phaidra - Repository of the University of Veterinary Medicine, Vienna” Hair cortisol levels in wolves reflect stress and vary by season and body region.
85 citations
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January 2014 in “Hormone Research in Paediatrics” Hair cortisol levels in children increase with age but are not affected by gender, puberty, or hair care.