November 2025 in “Canadian Journal of Diabetes” Measuring cortisol in hair helps understand stress and manage related health issues.
50 citations
,
November 2020 in “Physiology & behavior” People with depression often have higher hair cortisol levels, while those with PTSD tend to have lower levels, but more research is needed to understand this fully.
26 citations
,
July 2012 in “Endocrine Connections” Mitotane changes steroid breakdown, affecting cortisol availability.
54 citations
,
May 2015 in “Endocrinology” Manipulating 5α-reductase type 2 can affect liver fat production and glucocorticoid effects.
January 2018 in “Digital Scholarship - UNLV (University of Nevada Reno)” Hair cortisol levels can indicate chronic stress in children, with differences seen between races.
76 citations
,
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.
21 citations
,
January 2016 in “NeuroImmunoModulation” Hair cortisol levels can indicate stress over the past three months.
May 2026 in “Indian Journal of Medical Biochemistry” Hair biomarkers can help assess chronic stress in women's reproductive health but need standardized methods and regional studies.
85 citations
,
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.
Distal hair cortisol is not a reliable measure of early pregnancy cortisol levels.
19 citations
,
September 2010 in “The American journal of pathology” High glucocorticoids cause pancreatic malfunction and malabsorption, reversible with enzyme supplements.
January 2026 in “Western Journal of Nursing Research” Hair cortisol levels don't reliably indicate chronic stress in people with multiple sclerosis.
100 citations
,
October 2006 in “Rapid Communications in Mass Spectrometry” A quick method effectively detects banned substances in urine.
2 citations
,
December 2021 in “Scientific reports” Scalp hair sweating is a significant predictor of hair cortisol levels.
7 citations
,
September 2025 in “Psychoneuroendocrinology” Hair analytes decrease with storage, so analyze within six months.
6 citations
,
February 2022 in “European journal of endocrinology” The method can measure multiple hormones in women's hair and may help identify hormone-related health issues.
June 2020 in “Authorea (Authorea)” First-time mothers had higher stress hormone levels in late pregnancy than mothers who had given birth before.
April 2026 in “Comprehensive Psychoneuroendocrinology” Hair cortisol levels may be linked to stress, but results are inconsistent.
7 citations
,
April 2022 in “Journal of pharmaceutical and biomedical analysis” The method can measure multiple steroids in human hair to study long-term steroid metabolism, especially in newborns and children.
24 citations
,
October 2018 in “Addiction Biology” Alcohol dependence affects stress hormone levels more than childhood maltreatment.
4 citations
,
November 2024 in “The Journal of Steroid Biochemistry and Molecular Biology”
2 citations
,
June 2022 in “Scientific reports” Women with PCOS have higher hair cortisol levels, which are linked to worse metabolic and inflammatory conditions.
3 citations
,
June 2021 in “Journal of affective disorders” Hair cortisol and cortisone levels may affect how work stress influences depression in Chinese fishermen.
122 citations
,
October 2013 in “PEDIATRICS” Maternal stress during pregnancy affects a child's stress levels.
11 citations
,
November 2021 in “International journal of molecular sciences” Gut microbes significantly affect brain steroid levels.
November 2025 in “Contraception” COC use doesn't increase hair stress hormone levels, but hair treatments may affect results.
489 citations
,
June 2005 in “The FASEB Journal” Human hair follicles can produce cortisol like the body's stress response system.
23 citations
,
June 2015 in “Clinica Chimica Acta” Researchers found potential urine markers for polycystic ovary syndrome, including testosterone-glucuronide and 11α-hydroxyprogesterone, which may help diagnose the condition.
April 2026 in “Al-Kufa University Journal for Biology” Finasteride lowers cortisol and raises testosterone levels in rats.
February 2026 in “Psychoneuroendocrinology” Lower family income is linked to more stress in parents and more behavior problems in children.