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
,
September 1979 in “Acta Paediatrica” Girls have higher DHEA levels earlier in puberty than boys, indicating earlier development.
August 2025 in “Journal of Affective Disorders” Gender-diverse people face more depression and anxiety, partly due to stress and lower cortisol levels.
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.
November 2025 in “Canadian Journal of Diabetes” Measuring cortisol in hair helps understand stress and manage related health issues.
March 2025 in “Institutional Repositories DataBase (IRDB)” Hair cortisol can measure chronic stress but has inconsistent results.
Higher cortisol levels might be linked to worsening keratoconus.
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.
April 2024 in “JCEM case reports” A woman's rare benign tumor that released both cortisol and testosterone was successfully removed, improving her health.
January 2026 in “Neuroscience Applied” Hair cortisol levels decrease as children age, stabilizing around age 4.
November 2023 in “Journal of animal science/Journal of animal science ... and ASAS reference compendium” Pig hair cortisol levels are inheritable and linked to stress responses, which could help select for more resilient pigs.
Gender-diverse individuals face more depression and anxiety, possibly due to unique stress profiles.
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.
16 citations
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May 1998 in “International Journal of Dermatology” Stress hormones like cortisol may trigger psoriasis flare-ups.
2 citations
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November 2011 in “InTech eBooks” Stress can worsen skin conditions by affecting immune responses and skin cell activities.
June 2026 in “Journal of Obstetrics Gynecology and Cancer Research” Salivary cytokines and the Free Androgen Index are promising non-invasive markers for diagnosing PCOS.
5 citations
,
June 2020 in “Therapeutic drug monitoring” Hair sample weight is a better measure for cortisol levels in hair than hair protein concentration.
1 citations
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January 1978 in “PubMed” Certain chemical changes to cortisol and progesterone can increase or decrease their ability to inhibit hair growth.
February 2026 in “Psychoneuroendocrinology” Lower family income is linked to more stress in parents and more behavior problems in children.
June 2026 in “Scientific Reports” Open-label placebos can reduce stress and improve exam performance.
January 2020 in “Research Square (Research Square)” Stress hormone CRF causes hair loss and stops hair cell growth.
3 citations
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October 2021 in “Clinica Chimica Acta” Hormone levels in hair vary across the head, with the highest concentration of a key hormone linked to hair loss at the top.
3 citations
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April 2024 in “Dentistry Journal” Rinsing with oral care products or tap water helps neutralize acidity from Coca-Cola, but both are equally effective.
4 citations
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June 2025 in “JMIR Formative Research” Hair cortisol concentration may reflect some physiological stress but doesn't strongly correlate with perceived stress.
41 citations
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September 1951 in “Annals of Internal Medicine” The anterior pituitary controls adrenal cortex size and activity through ACTH.
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.
January 2026 in “Psychoneuroendocrinology” Self-collected hair samples can measure stress but may need adjustments for accuracy.
23 citations
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October 2008 in “Experimental and Clinical Endocrinology & Diabetes” Hair can show increased cortisol levels during late pregnancy.
June 2023 in “Clinical Chemistry” Unregulated supplements can contain hidden drugs causing misleading symptoms and test results.