May 2023 in “Animal Reproduction Update” High levels of cortisol in hair show long-term stress which can lower fertility in animals.
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.
122 citations,
October 2013 in “PEDIATRICS” Maternal stress during pregnancy affects a child's stress levels.
1 citations,
October 2013 in “Journal of Postgraduate Medical Institute” Metformin helps improve menstrual irregularities and some hormone levels in PCOS patients, but not symptoms like excess hair, acne, or hair loss.
7 citations,
May 2021 in “General and comparative endocrinology” Muskoxen's qiviut cortisol levels indicate their stress hormone activity over the hair growth period.
1 citations,
January 2015 in “Hair therapy & transplantation” Some supplements and hormones can increase hair loss by raising DHT levels.
July 2020 in “International journal of clinical & experimental dermatology” Hair loss in women aged 20-30 is often linked to deficiencies in Vitamin D, zinc, ferritin, and haemoglobin, as well as low SHBG levels in those with irregular periods.
May 2022 in “The Journal of Clinical Pharmacology” Metformin reduces certain hormone levels in men with early-onset hair loss.
3 citations,
January 2020 in “Indian Dermatology Online Journal” Skin problems in patients with polycystic ovarian disease are linked to body weight, blood sugar, and hormone levels.
51 citations,
January 2004 in “Domestic animal endocrinology” Melatonin implants and long daylight hours alter the timing of hormone release and hair growth in mouflon sheep.
34 citations,
July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Human hair growth is influenced by androgen hormones, and red deer mane follicles have similar hormone receptors.
14 citations,
September 2007 in “Steroids” The study concluded that androstendione and DHEA are important for diagnosing high male hormone levels in women with excessive hair growth.
January 2024 in “World Journal of Biology Pharmacy and Health Sciences” High prolactin and low vitamin D levels may be linked to hair loss in women.
48 citations,
January 2000 in “Hormone Research in Paediatrics” Cytokines and neuropeptides are key in controlling androgen levels, affecting skin and hair conditions.
2 citations,
April 1989 in “PubMed” Canrenone effectively reduced hair growth and testosterone levels in women with excessive hairiness.
29 citations,
February 1987 in “General and comparative endocrinology” Thyroid and gonadal hormones control seasonal hair growth and molting in male European badgers.
September 2020 in “University of Thi-Qar Journal of Medicine” Low iron and vitamin D3 levels might be major causes of hair loss in Iraqi women.
1 citations,
December 2021 in “Animals” Low zinc and selenium levels in sheep are linked to hair loss and thyroid problems.
198 citations,
July 2011 in “Cochrane library” Lifestyle changes can improve body composition, excess male hormone levels, and insulin resistance in women with PCOS.
August 2022 in “International Journal of Health Sciences (IJHS)” Low levels of zinc, ferritin, and vitamin B12 are linked to severe hair loss in pregnant women during their last two trimesters.
January 2020 in “Advances in Sexual Medicine” Female pattern hair loss does not significantly affect sexual dysfunction.
5 citations,
April 2014 in “European Journal of Obstetrics & Gynecology and Reproductive Biology” AMH levels can't reliably tell the difference between LOCAH and all types of PCOS in women with excessive hair growth.
3 citations,
July 1993 in “Contraception” Women with moderate body hair have higher levels of certain hormones and may benefit from treatment that increases sex hormone-binding protein.
2 citations,
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.
January 2018 in “Springer eBooks” Gender affects hair and scalp characteristics, with differences in hormone responses, graying patterns, and trace metals.
16 citations,
January 2016 in “Annals of Dermatology” Green tea component EGCG may help prevent hair loss by changing microRNA levels in certain scalp cells.
5 citations,
March 2020 in “Current Opinion in Endocrine and Metabolic Research” Skin problems in PCOS, like excess hair, acne, and hair loss, may not always indicate high male hormone levels and need careful diagnosis for proper treatment.
August 2009 in “International Journal of Dermatology” A postmenopausal woman's facial redness, acne, and excess hair were caused by too much hormone therapy for insomnia, but improved after stopping the treatment.
56 citations,
April 1998 in “Steroids” Finasteride reduces hair loss and treats BPH without major hormone changes, but may cause sexual dysfunction.
4 citations,
November 2021 in “Pharmaceuticals” Paeonia lactiflora and Poria cocos extracts can potentially increase hair growth and reduce hair loss symptoms by lowering testosterone and inflammation levels.