December 2011 in “Korean journal of veterinary research” A Miniature Pinscher dog with hair loss and scaling was diagnosed with pattern alopecia and improved with melatonin treatment.
January 2020 in “Research Square (Research Square)” Stress hormone CRF causes hair loss and stops hair cell growth.
10 citations
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November 2019 in “Neuroendocrinology” Measuring 17-hydroxyprogesterone in hair can help monitor androgen levels in people with congenital adrenal hyperplasia.
January 2025 in “BMJ Case Reports” Precocious puberty can signal familial adenomatous polyposis.
95 citations
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September 1979 in “Acta Paediatrica” Girls have higher DHEA levels earlier in puberty than boys, indicating earlier development.
237 citations
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September 2018 in “Clinical Biochemistry” Hair cortisol analysis can help diagnose stress-related conditions but needs more refinement for widespread use.
Higher pre-pregnancy BMI is linked to more stress in mothers and more behavioral problems in two-year-old children.
May 2012 in “Neurotoxicology and Teratology” Hair cortisol can be a reliable way to measure long-term stress.
October 2024 in “World Journal of Psychiatry” Stress worsens hair loss in androgenetic alopecia.
Women with androgenetic alopecia (hair loss) have normal prostate specific antigen levels but higher testosterone levels.
Wildebeest stress and hormone levels are influenced by food availability, human presence, and reproductive cycles.
January 2012 in “CINECA IRIS Institutial Research Information System (University of Genoa)” Hair cortisol reliably indicates stress in rabbits.
21 citations
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October 2009 in “Dermatology” Men with male pattern hair loss have different levels of certain hormones compared to men without hair loss.
9 citations
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February 2020 in “Stress” Children with lower inhibitory control experience more stress when starting third grade.
Gender-diverse individuals face more depression and anxiety, possibly due to unique stress profiles.
December 2025 in “Neurobiology of Stress” People who recently attempted suicide during depression showed signs of adrenal fatigue, but had higher DHEA levels around the attempt time.
January 2023 in “Research Square (Research Square)” Hair cortisol may be a good indicator of recent mood in people with bipolar disorder.
Measuring cortisol in hair can help assess adrenal function in asthmatic children using inhaled corticosteroids.
16 citations
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August 2007 in “Histopathology” A woman's rare adrenal tumor caused high testosterone and cortisol levels, which normalized after the tumor was removed.
December 2022 in “Cureus” Hormones significantly influence hair growth, with conditions like hirsutism and patterned hair loss linked to hormone levels; more research is needed for full understanding.
2 citations
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October 1999 in “Annals of the New York Academy of Sciences” Melatonin and cortisol affect mink winter hair growth, but β-endorphin levels do not.
September 2012 in “European journal of psychotraumatology” A new method accurately measures long-term hormone levels in hair.
567 citations
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October 2007 in “Clinical and investigative medicine” Hair cortisol can be used to measure long-term stress exposure.
199 citations
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July 2007 in “General and Comparative Endocrinology” Hair cortisol can reliably indicate chronic stress in cats and dogs.
December 2025 in “Therapeutic Drug Monitoring” Pulverization extracts more cortisol from hair, but any method works due to individual differences.
December 2025 in “Biology Bulletin Reviews” Hair cortisol can indicate animal stress but varies with many factors.
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.
May 2016 in “Endocrine Abstracts” Proximal hair cortisol is a reliable tool for diagnosing Cushing's Syndrome.
16 citations
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March 2013 in “Clinica Chimica Acta” Cortisol and cortisone release from hair increases in steps over time during incubation.
August 2021 in “Asian Journal of Pharmaceutical and Clinical Research” Plant extracts in shampoo improved hair thickness and density in men with hair loss.