July 2022 in “Research Square (Research Square)” Hair analysis can somewhat track past testosterone levels but is influenced by factors like hair washing, growth rate, sex, and hair color.
12 citations,
December 2020 in “Comprehensive psychoneuroendocrinology” Hormone levels in hair change during pregnancy, with progesterone increasing significantly compared to non-pregnant women.
3 citations,
November 2021 in “Stress” Girls had higher stress hormone levels during school due to social and emotional issues, while boys had higher overall hormone levels with slight changes when school started.
October 2022 in “Linköping University medical dissertations” The method shows hair testosterone levels reflect those in saliva, but are affected by various factors and may indicate a risk for heart attack.
1 citations,
October 2023 in “PloS one” Cosmetic hair treatments can increase hair testosterone levels, while natural hair color does not affect it.
September 2023 in “Scientific reports” Segmental hair analysis can track testosterone over time but needs adjustments for sex, hair color, and washing frequency.
August 2019 in “Journal of archaeological science: Reports/Journal of archaeological science: reports” Ancient hair can preserve hormones, revealing health and fertility insights.
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.
January 2016 in “Renal Failure” Kidney stones and hair loss are significantly related in people under 60 years old.
12 citations,
December 2017 in “Scientific reports” The new test can measure very small amounts of testosterone in hair, and grinding the hair up first gives more accurate results.
32 citations,
January 2018 in “American Journal of Clinical Dermatology” Hormone therapy affects hair growth in transgender individuals, with testosterone potentially causing hair loss in trans men and estrogen reducing facial/body hair in trans women; treatment options vary.
44 citations,
November 2018 in “Journal of applied ecology” Hair analysis for stress and reproductive hormones in wildlife needs more research for accuracy across species.
4 citations,
March 2018 in “Systems biology in reproductive medicine” Men born very underweight had higher estrogen levels but normal reproduction compared to normal birth weight men.
December 2020 in “Journal of Skin and Sexually Transmitted Diseases” No strong link between testosterone or DHEAS levels and acne or hair loss in females.
18 citations,
May 1992 in “American Journal of Biological Anthropology” Higher androgen levels do not cause baldness in men.
47 citations,
January 2001 in “Journal of Investigative Dermatology” High testosterone to epitestosterone ratio in hair could predict male-pattern baldness.
72 citations,
October 1998 in “Baillière's clinical endocrinology and metabolism” Long-term testosterone therapy can cause hormone suppression, affect prostate and heart health, and alter physical characteristics, but does not increase prostate cancer risk and needs more research for full risk assessment.
17 citations,
March 2016 in “Liver international” Men with advanced liver disease and high oestrone and low testosterone levels have worse health outcomes.
27 citations,
January 2001 in “Endocrine Practice” Finasteride cream reduces hair growth in women with hirsutism, but more research needed.
4 citations,
June 2019 in “Journal of Cosmetic Dermatology” Women with hirsutism have different levels of omentin-1, which may be linked to the condition and its genetic aspects.
101 citations,
April 1994 in “Baillière's clinical endocrinology and metabolism” 5α-reductase is essential for male sexual development and its inhibitors have potential in treating various conditions related to hormone action.
100 citations,
September 2017 in “Molecular and Cellular Endocrinology” Male hormones and their receptors play a key role in hair loss and skin health, with potential new treatments being explored.
13 citations,
June 2020 in “Journal of Dermatological Treatment” Topical finasteride helps regrow hair and reduce hair loss in men and women.
December 2020 in “Skin appendage disorders” Finasteride may effectively treat hair loss in Klinefelter Syndrome patients.
10 citations,
December 1995 in “Journal of women's health” Finasteride reduces hair growth in women with hirsutism and works better with electrolysis.
2 citations,
June 2022 in “International Journal of Biomedicine” The review suggests a comprehensive approach to treat hirsutism, focusing on hair removal, medication, and managing emotional effects.
8 citations,
January 1996 in “Springer eBooks” Male pattern baldness may be caused by factors like poor blood circulation, scalp tension, stress, and hormonal imbalances, but the exact causes are still unclear.
37 citations,
February 2007 in “Clinical Obstetrics and Gynecology” The document concludes that treating PCOS requires a combination of drugs to manage reproductive and metabolic symptoms, with more research needed on combination therapies.
1 citations,
January 2022 in “Springer eBooks” 21 citations,
October 2011 in “British Journal of Dermatology” Testosterone therapy helped 63% of androgen-deficient women grow scalp hair, but more research is needed.