November 2024 in “Psychoneuroendocrinology” Testosterone increases hair testosterone levels, stress raises hair cortisol, and relationship status affects hormone levels.
March 2024 in “American journal of veterinary research” Clippers are the best tool for collecting dog hair for chemical tests, being fast and stress-free for the dog.
134 citations
,
March 2015 in “Clinical Endocrinology” A new method accurately measures long-term steroid levels in human hair.
12 citations
,
April 1987 in “PubMed” Low-dose spironolactone is safe and effective for treating hirsutism.
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.
Social hair plucking in rhesus macaques is an abnormal behavior with both social and aggressive traits, affecting health.
March 2025 in “Institutional Repositories DataBase (IRDB)” Hair cortisol can measure chronic stress but has inconsistent results.
23 citations
,
August 1987 in “PubMed” The ferret had hyperadrenocorticism and other health issues like heart, liver, and kidney problems.
January 2018 in “Springer eBooks” Gender affects hair and scalp characteristics, with differences in hormone responses, graying patterns, and trace metals.
April 2026 in “European Journal of Cardiovascular Nursing” Physical activity may increase stress in some heart failure patients.
Liver abscesses don't affect stress in beef feedlot steers.
November 2024 in “Frontiers in Endocrinology” Hair analysis can help diagnose adrenal disorders non-invasively.
501 citations
,
October 2008 in “Psychoneuroendocrinology” Hair cortisol levels can show increased stress during late pregnancy but only for up to six months.
23 citations
,
August 2017 in “Scientific Reports” Darker hair may lead to higher cortisol readings, suggesting a need to adjust for hair color in studies.
April 2026 in “Al-Kufa University Journal for Biology” Finasteride lowers cortisol and raises testosterone levels in rats.
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.
August 2019 in “Journal of archaeological science: Reports/Journal of archaeological science: reports” Ancient hair can preserve hormones, revealing health and fertility insights.
April 2025 in “Journal of the Faculty of Medicine Baghdad” Alopecia areata patients may have higher T3 and cortisol levels, suggesting a hormonal link.
August 2015 in “Arquivo Brasileiro de Medicina Veterinária e Zootecnia/Arquivo brasileiro de medicina veterinária e zootecnia” Caffeine intake during pregnancy and lactation can cause skin lesions in mother rats and their babies, not linked to cortisol levels.
70 citations
,
March 2010 in “The Journal of Steroid Biochemistry and Molecular Biology” Blocking a specific enzyme might help treat obesity and diabetes, but more research is needed to ensure it's safe.
2 citations
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June 2022 in “Scientific reports” Women with PCOS have higher hair cortisol levels, which are linked to worse metabolic and inflammatory conditions.
February 2025 in “Iraqi Journal of Science” PCOS patients have higher LDH and lower cortisol, dopamine, zinc, and vitamin D3, which may contribute to their symptoms and obesity.
May 2021 in “Journal of the Endocrine Society” A patient produced cortisol after adrenalectomy, possibly due to residual tissue or other body parts making steroids.
January 2013 in “Journal of dermatology” A new medical syndrome may include skin changes, hair loss, sweating issues, bone malformations, leg swelling, and low cortisol.
2 citations
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December 2021 in “Scientific reports” Scalp hair sweating is a significant predictor of hair cortisol levels.
January 2023 in “Research Square (Research Square)” Hair cortisol may be a good indicator of recent mood in people with bipolar disorder.
51 citations
,
November 2005 in “Journal of Medical Primatology” Alopecia in captive rhesus macaques is affected by season, sex, age, housing, and stress, with complex links between stress hormones and hair loss.
11 citations
,
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.
4 citations
,
July 2016 in “Dermatologic Surgery” Higher epinephrine concentration and specific injection sites increase scalp vasoconstriction time.
3 citations
,
June 2021 in “Journal of affective disorders” Hair cortisol and cortisone levels may affect how work stress influences depression in Chinese fishermen.