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.
September 2021 in “Psychoneuroendocrinology” Nurses had higher stress levels during intense phases of the COVID-19 pandemic.
April 2020 in “Journal of the Endocrine Society” Hair cortisol measurement can help diagnose and monitor Cushing’s disease.
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.
December 2019 in “Case Medical Research” January 2018 in “Belarusian State Pedagogical University repository (Belarusian State Pedagogical University)” Stress might trigger hair loss in alopecia areata, but more research is needed.
September 2017 in “OhioLink ETD Center (Ohio Library and Information Network)” Caregivers had lower stress hormone levels than non-caregivers, suggesting caregiving stress affects the body differently.
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.
July 2011 in “Neurotoxicology and Teratology” January 2026 in “Universität Zürich, ZORA” 
July 2025 in “International Journal of Dermatology Venereology and Leprosy Sciences” Higher stress levels may worsen alopecia areata, suggesting stress management is important for treatment.
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.
10 citations
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September 2019 in “Frontiers in Veterinary Science” Older steers have higher hair cortisol levels than younger steers.
Wage increases and cash benefits reduced stress in early childhood educators.
August 2015 in “Psychoneuroendocrinology” April 2026 in “Comprehensive Psychoneuroendocrinology” January 2026 in “Zenodo (CERN European Organization for Nuclear Research)” The study aims to see if maternal hair cortisol levels during pregnancy relate to adverse childhood experiences.
January 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Cows moving from tie-stall to free-stall housing had more heel problems, less joint lesions, and higher stress levels.
August 2018 in “Psychological Science” January 2026 in “SSRN Electronic Journal” 
375 citations
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July 2006 in “Journal of Investigative Dermatology” Stress can worsen skin and hair conditions by affecting the skin's immune response and hormone levels.
183 citations
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March 1982 in “JAMA” Spironolactone is a safe and effective treatment for reducing excessive hair growth in women.
149 citations
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June 2002 in “Veterinary record/The veterinary record” Trilostane effectively improved symptoms in dogs with a certain adrenal gland disorder.
116 citations
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April 2002 in “American journal of veterinary research” Trilostane effectively and safely treats dogs with pituitary-dependent hyperadrenocorticism, improving symptoms and adrenal gland size.
114 citations
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October 2006 in “Journal of the European Academy of Dermatology and Venereology” The new clobetasol propionate foam is effective and safe for treating alopecia areata.
105 citations
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February 2011 in “The Journal of Clinical Endocrinology & Metabolism” Treating sleep apnea in young obese women with PCOS can improve heart health and insulin sensitivity.
103 citations
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December 2021 in “Journal of biological rhythms” Shift work disrupts the body's natural clock, leading to health problems.
94 citations
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April 2002 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” A new gene mutation causes female pseudohermaphroditism due to glucocorticoid resistance.