May 2023 in “Animal Reproduction Update” High levels of cortisol in hair show long-term stress which can lower fertility in animals.
24 citations
,
November 2016 in “Molecular Medicine Reports” Hormonal imbalances, often indicating conditions like PCOS, are common in women with hard-to-treat acne, and a treatment approach addressing these imbalances may be needed.
10 citations
,
December 2015 in “Clinics in Dermatology” Diabetes can lead to blindness and skin problems, and managing blood sugar and blood pressure is crucial to prevent these complications.
May 2011 in “Journal of The American Academy of Dermatology” Objective assessment is needed to accurately determine medication use and adherence.
125 citations
,
January 1999 in “Drugs” Finasteride effectively treats baldness but may cause sexual side effects.
9 citations
,
April 2020 in “Endocrinology, diabetes & metabolism case reports” Pregnancy with Cushing's syndrome is rare and risky for both mother and baby, needing early diagnosis and treatment.
November 2024 in “Psychoneuroendocrinology” Testosterone increases hair testosterone levels, stress raises hair cortisol, and relationship status affects hormone levels.
4 citations
,
May 2021 in “Dermatologic Clinics” The conclusion is that hair loss in women is caused by a mix of hormonal, environmental, and genetic factors, and treatments should target these various causes.
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.
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.
3 citations
,
June 2021 in “Journal of affective disorders” Hair cortisol and cortisone levels may affect how work stress influences depression in Chinese fishermen.
October 2024 in “World Journal of Psychiatry” Stress worsens hair loss in androgenetic alopecia.
1 citations
,
June 2024 in “Rehabilitation Medicine” Higher cortisol and cortisone levels in hair may predict mood disorders after a stroke.
16 citations
,
August 2007 in “Histopathology” A woman's rare adrenal tumor caused high testosterone and cortisol levels, which normalized after the tumor was removed.
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.
2 citations
,
January 2014 in “International Journal of Endocrinology” Women with a certain type of tumor had higher levels of pregnancy hormone and male hormones, which decreased after treatment.
1 citations
,
January 2023 in “International journal of urology” Low zinc levels are linked to low testosterone but not to sexual problems.
23 citations
,
March 2016 in “American Journal of Primatology” In female rhesus monkeys, hair gain is linked to reduced stress levels.
90 citations
,
July 2014 in “Conservation Physiology” Hair cortisol levels in brown bears can be affected by both long-term and short-term stress.
76 citations
,
October 2011 in “Clinica Chimica Acta” Hot water and UV exposure reduce hair cortisol levels, with the back of the head showing the most consistent levels.
3 citations
,
January 2012 Hair cortisol analysis shows sweat affects cortisol levels, and severe OSA may increase stress, but CPAP treatment doesn't significantly reduce physiological stress.
January 1989 in “Handbook of experimental pharmacology” Drugs can change hair growth and this is important because it can upset people.
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.
122 citations
,
October 2010 in “Clinica Chimica Acta” Washing hair with water or shampoo lowers cortisol levels in hair.
50 citations
,
November 2020 in “Physiology & behavior” People with depression often have higher hair cortisol levels, while those with PTSD tend to have lower levels, but more research is needed to understand this fully.
November 2025 in “Journal of Laboratory Medicine” Chronic stress increased after lockdown, especially in young adults and females.
19 citations
,
January 2017 in “Hormone Molecular Biology and Clinical Investigation” High levels of male hormones are very common in women with PCOS and affect their metabolism differently depending on their weight.
16 citations
,
March 2000 in “Clinical Biochemistry” Women with hair loss had higher levels of certain hormones, suggesting a link to a condition like PCOS.
13 citations
,
October 2002 in “Journal of Biochemical and Biophysical Methods” Men with male-pattern baldness have higher levels of certain testosterone metabolites and may have more active androgen metabolism.
June 2020 in “Authorea (Authorea)” First-time mothers had higher stress hormone levels in late pregnancy than mothers who had given birth before.