37 citations
,
December 2017 in “Journal of Investigative Dermatology Symposium Proceedings” Black and Hispanic women are more likely to have alopecia areata than white women.
5 citations
,
February 2022 in “Frontiers in physiology” Hair graying is influenced by factors like nerves, fat cells, and immune cells, not just hair follicles.
January 2025 in “Global Journal of Medical Therapeutics” Minoxidil can cause allergic skin reactions, especially in those with underlying health issues.
12 citations
,
March 2018 in “Australasian Journal of Dermatology” Minoxidil treatment can reduce hair shedding, increase hair volume, and even change hair color in patients with loose anagen hair syndrome.
26 citations
,
December 2003 in “Experimental Dermatology” Specific keratin gene mutations can cause monilethrix.
December 2025 in “PubMed” Iron deficiency is linked to hair loss in adolescents, especially females, in northern Sudan.
A new genetic mutation was found causing hair and eye issues in a boy.
25 citations
,
March 2007 in “The journal of investigative dermatology/Journal of investigative dermatology” A specific gene mutation causes varying hair loss severity in a Pakistani family.
January 2012 in “Yearbook of Dermatology and Dermatologic Surgery” Some African American women experience central scalp hair loss, often linked to a history of fungal scalp infection.
March 2026 in “International Journal of Clinical Dermatology” Iron deficiency can cause certain skin issues like eczematous hand and perioral lesions.
November 2024 in “IP Indian Journal of Clinical and Experimental Dermatology” Graves' disease often causes skin issues, especially hyperpigmentation, which may be linked to treatments.
15 citations
,
January 2011 in “International journal of trichology” Using a hot iron on wet hair can cause dry, brittle hair with air bubbles inside.
5 citations
,
October 2018
October 2020 in “Ayurline: international journal of research in indian medicine” Poor quality hair products contribute to premature greying in children.
June 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Henna is a safer, natural hair dye but needs more research and standardization.
31 citations
,
December 2012 in “British Journal of Dermatology” Korean women's hair thins, weakens, and greys with age, with mineral and sterol changes.
54 citations
,
November 1995 in “The Journal of Clinical Endocrinology & Metabolism” Females with 5 alpha-reductase-2 deficiency have less body hair, no acne, normal fertility, and delayed menarche.
14 citations
,
September 2017 in “General and comparative endocrinology” Barn owls with smaller black spots have higher testosterone levels, which might be due to genetic effects on hormone regulation rather than hormone effects on coloration.
March 1983 in “The Journal of the American Dental Association”
34 citations
,
January 1943 in “Endocrinology” Adrenalectomy boosts hair growth and melanin in black rats, even with vitamin B¹ deficiency.
2 citations
,
April 2021 in “Journal of The American Academy of Dermatology” Female pattern hair loss affects 32.3% of women, increasing with age and showing no racial differences.
8 citations
,
December 2003 in “Experimental Dermatology” Altering the keratin 17 gene in mice hair follicles caused temporary hair issues, but changes were minimal and short-lived.
39 citations
,
December 2011 in “PLoS ONE” Radiofrequency exposure can stimulate hair growth by increasing IGF-1 in hair follicle cells.
December 2018 in “International Journal of Research -GRANTHAALAYAH” Biomagnetic forces can deform red blood cells.
October 2024 in “Journal of the Endocrine Society” A rare genetic mutation causes resistance to vitamin D, leading to severe rickets and requires high doses of calcium and vitamin D for management.
53 citations
,
October 1984 in “Endocrine reviews” Excessive hair growth in women often has no known cause and is not linked to race or other hormonal symptoms.
January 2016 in “ACG Case Reports Journal” A girl with Rapunzel syndrome had surgery to remove a hairball, and addressing mental health is important to prevent it from happening again.
November 2022 in “Innovation in aging” Older adults in Puerto Rico often couldn't be tested for hair cortisol due to refusal or lack of hair, with race and hair products affecting results.
6 citations
,
March 2017 in “Journal of the European Academy of Dermatology and Venereology” Identical twins with a rare KRT 86 gene mutation both have the hair disorder monilethrix.