1 citations
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June 2024 in “Rehabilitation Medicine” Higher cortisol and cortisone levels in hair may predict mood disorders after a stroke.
90 citations
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July 2014 in “Conservation Physiology” Hair cortisol levels in brown bears can be affected by both long-term and short-term stress.
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.
80 citations
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January 2011 in “Clinical Chemistry and Laboratory Medicine (CCLM)” Hair cortisol levels can reflect salivary cortisol levels in humans.
44 citations
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February 2016 in “Zoology” Hair cortisol levels in primates are useful for stress assessment but vary by age, sex, species, and hair collection methods.
24 citations
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January 2019 in “Hormone Research in Paediatrics” Hair cortisol levels in children are influenced by puberty, age, gender, and body mass index.
1 citations
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December 2018 in “IntechOpen eBooks” Human hair shows promise for non-invasive medical testing, but more research is needed to standardize its use.
1 citations
,
December 2021 in “American Journal of Obstetrics and Gynecology” Hair cortisol levels peak in the third trimester and decline postpartum.
1 citations
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September 2016 in “Brain Behavior and Immunity” Hair cortisol levels can indicate stress and are affected by washing frequency, not cosmetic treatments.
April 2026 in “Comprehensive Psychoneuroendocrinology” Hair cortisol levels may be linked to stress, but results are inconsistent.
April 2026 in “Journal of Experimental Psychopathology” Hair cortisol levels may not reliably indicate psychological distress.
January 2026 in “Western Journal of Nursing Research” Hair cortisol levels don't reliably indicate chronic stress in people with multiple sclerosis.
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.
January 2026 in “Neuroscience Applied” Hair cortisol levels decrease as children age, stabilizing around age 4.
October 2022 in “European heart journal” Higher stress levels were found about two weeks before a heart attack.
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.
1 citations
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September 2020 in “Endocrinology, Diabetes & Metabolism Case Reports” The conclusion is that thorough investigation of hypertension and hormonal dysfunctions is important, and there may be a link between these conditions and cancer.
22 citations
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May 2019 in “Animals” High hair cortisol levels indicate stress in cows due to poor shelter conditions and health issues.
7 citations
,
October 2015 in “American Journal of Primatology” Monkeys with hair loss during pregnancy showed higher stress hormone levels and invested differently in their offspring.
January 2026 in “Psychoneuroendocrinology” Loneliness raises stress levels in older African American men but not women.
January 2026 in “Psychoneuroendocrinology” Caregiver perspective-taking affects stress hormone levels in people with Alzheimer's.
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.
May 2023 in “Animal Reproduction Update” High levels of cortisol in hair show long-term stress which can lower fertility in animals.
November 2025 in “European Journal of Endocrinology” Hair steroid profiling is a feasible, non-invasive alternative to serum analysis for assessing hormone levels and metabolism.
Hair hormone levels can indicate stress after a medically indicated abortion.
6 citations
,
September 2010 in “Animal” Selecting Angus cattle for earlier puberty lowers prolactin levels but doesn't affect hair growth.
November 2025 in “Open Access CRIS of the University of Bern” Androgen levels are more linked to body size in boys than girls.
157 citations
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June 2015 in “Psychoneuroendocrinology” Hair cortisol and cortisone levels increase with age, are higher in diabetics, vary by gender, decrease with frequent hair washing, and are lower in winter.
33 citations
,
January 2017 in “Conservation physiology” Measuring reproductive hormones in brown bear hair could help identify their sex and reproductive state, but better collection methods or lab techniques are needed.
24 citations
,
October 2018 in “Addiction Biology” Alcohol dependence affects stress hormone levels more than childhood maltreatment.