5 citations
,
January 2021 in “PeerJ” Elephant tail-hair can show past stress levels, matching times when stressful events happened.
10 citations
,
September 2019 in “Frontiers in Veterinary Science” Older steers have higher hair cortisol levels than younger steers.
4 citations
,
June 2025 in “JMIR Formative Research” April 2026 in “Frontiers in Veterinary Science” Male cats have higher stress levels than females.
August 2015 in “Psychoneuroendocrinology” 1 citations
,
January 1978 in “PubMed” Certain chemical changes to cortisol and progesterone can increase or decrease their ability to inhibit hair growth.
August 2016 in “Psychoneuroendocrinology” 85 citations
,
January 2014 in “Hormone Research in Paediatrics” 1 citations
,
October 2024 in “International Journal of Obesity” 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)” Wage increases and cash benefits reduced stress in early childhood educators.
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” May 2026 in “Microchemical Journal” January 2026 in “SSRN Electronic Journal”
4 citations
,
December 1962 in “European journal of endocrinology” Alloxan diabetes, methylthiouracil, cortisone, and adrenaline affect how white mice hair follicles use glucose and cystine and their cell division.
28 citations
,
May 2014 in “PubMed” Higher stress levels may be linked to hair loss in rhesus macaques.
10 citations
,
November 2019 in “Neuroendocrinology” Measuring 17-hydroxyprogesterone in hair can help monitor androgen levels in people with congenital adrenal hyperplasia.
9 citations
,
April 2016 in “Clinical Endocrinology” Scalp hair 17-OHP and androstenedione levels can help monitor treatment in CAH patients.
7 citations
,
May 2021 in “General and comparative endocrinology” Muskoxen's qiviut cortisol levels indicate their stress hormone activity over the hair growth period.
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.
4 citations
,
February 2019 in “American Journal of Human Biology” Collecting hair from all scalp sections works as well as the standard method for cortisol analysis.
3 citations
,
December 2017 in “Journal of Psychiatric Research” Hair samples can't reliably detect hypercortisolism in anorexia nervosa patients.
1 citations
,
November 2023 in “Frontiers in veterinary science” Goat hair shows changes in metal levels and stress when goats move from indoors to mountain pastures.
1 citations
,
December 2018 in “IntechOpen eBooks” Human hair shows promise for non-invasive medical testing, but more research is needed to standardize its use.
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.
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.
September 2025 in “Cosmoderma” Pandemic stress worsens hair loss and skin issues, suggesting combined mental and skin care treatments.