November 2024 in “Psychoneuroendocrinology” Testosterone increases hair testosterone levels, stress raises hair cortisol, and relationship status affects hormone levels.
93 citations
,
June 2001 in “The Journal of Clinical Endocrinology and Metabolism” Certain genetic variations in the AR and ERβ genes can affect androgen levels in women.
February 2020 in “Benha Journal of Applied Sciences” Insulin resistance and nesfatin-1 are linked to acne severity.
6 citations
,
September 2005 in “Expert Opinion on Pharmacotherapy” Androgen therapy can help with symptoms like low libido in women, but more research is needed to understand its long-term safety and effects on health.
June 1995 in “International Journal of Gynecology & Obstetrics” Women with hair loss have higher androgen levels, while men with early balding have altered androgen ratios.
40 citations
,
April 2013 in “Dermato-endocrinology” People with chronic Alopecia Areata often have lower vitamin D levels.
6 citations
,
January 2020 in “Postepy Dermatologii I Alergologii” Check and treat low iron and vitamin D levels in people with hair loss.
13 citations
,
December 2020 in “BMJ Open Diabetes Research & Care” Changes in SHBG levels don't predict diabetes risk reduction.
15 citations
,
February 2019 in “Internal Medicine Journal” Australian doctors experienced in adult transgender healthcare mostly prescribe intramuscular testosterone and oral estradiol, recommend mental health assessments before hormone therapy, and support improved training and guidelines.
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.
September 2023 in “Clinical, Cosmetic and Investigational Dermatology” Higher SHBG levels are linked to less severe hair loss in women, but vitamin D levels don't seem to affect hair loss.
January 2024 in “İstanbul Kuzey Klinikleri” Low ferritin levels are linked to increased hair loss; no link found between vitamin B12, TSH levels, and hair loss.
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.
32 citations
,
January 1990 in “Clinical Endocrinology” Women with female pattern hair loss have higher levels of certain androgens, suggesting increased androgen exposure to hair follicles.
26 citations
,
January 1994 in “Hormone and Metabolic Research” Taking spironolactone and linestrenol for androgen excess can lead to lower bone density in young women.
5 citations
,
May 2021 in “Veterinary medicine and science” Injecting cosyntropin into grizzly bears increases blood cortisol but doesn't change hair cortisol levels.
21 citations
,
November 2014 in “Journal of Endocrinological Investigation” Cross-sex hormone therapy is important for managing gender dysphoria and requires careful monitoring and healthcare provider education.
April 2026 in “Al-Kufa University Journal for Biology” Finasteride lowers cortisol and raises testosterone levels in rats.
Women with androgenetic alopecia (hair loss) have normal prostate specific antigen levels but higher testosterone levels.
5 citations
,
August 2018 in “Sexual Medicine Reviews” 5α-Reductase inhibitors do not consistently increase testosterone levels in the blood.
November 2023 in “International Journal of Trichology” No significant link between hair loss and iron or thyroid levels was found, but checking for deficiencies might still be useful.
3 citations
,
November 2022 in “Baghdad Journal of Biochemistry and Applied Biological Sciences” Women with PCOS have higher renin and d-dimer levels, especially if they have COVID-19.
5 citations
,
March 2019 in “International Journal of Endocrinology” Exercise and finasteride together improve ovary health in PCOS rats.
March 2025 in “Frontiers in Veterinary Science” Changing light exposure boosts hormone levels and antioxidant activity, improving cashmere growth in goats.
3 citations
,
February 2018 in “Human Reproduction” A man with testotoxicosis was fertile despite low FSH levels, suggesting high testosterone may allow sperm production without FSH.
1 citations
,
March 2020 in “Current Science” Most people in the surveyed area experience hair loss, but they are not aware of the role of diet, iron, hormones, genetics, and possibly water quality in causing it.
1 citations
,
June 2024 in “Rehabilitation Medicine” Higher cortisol and cortisone levels in hair may predict mood disorders after a stroke.
March 2024 in “BMC women's health” The levonorgestrel implant increases free testosterone and lowers SHBG more than DMPA-IM and the copper IUD.
20 citations
,
April 2009 in “Fertility and Sterility”
75 citations
,
June 1999 in “Pediatric Clinics of North America” The document concludes that early recognition and treatment of PCOS in adolescents is crucial for managing symptoms and long-term health risks.