November 2021 in “International journal of research - granthaalayah” The document suggests that human hair has electrical charges because of a gap in nerve cell coverage that affects electromagnetic radiation.
January 2025 in “Arquivo Brasileiro de Medicina Veterinária e Zootecnia” Agoutis in captivity have more resting (telogen) hairs than growing (anagen) hairs, regardless of season or gender.
February 2012 in “Clinical and Experimental Dermatology” Many adult women experience unexplained excessive hair shedding, often starting before age 40.
8 citations
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July 2004 in “Journal of morphology” Marsupial hair structure and keratin distribution are similar to placental mammals.
1 citations
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August 2021 in “Journal of Cosmetic Dermatology” Female pattern hair loss is more common in rural areas among secondary school girls.
January 2007 in “Revista del Centro Dermatológico Pascua” Androgenetic alopecia causes hair thinning in women, affecting their quality of life.
28 citations
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March 1942 in “Journal of Endocrinology” Male rats grow hair faster than females, and certain hormones can slow or slightly increase hair growth, but not significantly beyond natural rates.
20 citations
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July 2005 in “Experimental dermatology” The fuzzy gene is crucial for controlling hair growth cycles.
3 citations
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January 2015 in “Mathematical problems in engineering” Hair damage increases significantly with higher temperatures and longer heating times.
January 2023 in “Indian dermatology online journal” Skin problems after waxing led to a sarcoidosis diagnosis.
1 citations
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March 1958 in “PubMed” 87 citations
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August 1974 in “Journal of Investigative Dermatology”
36 citations
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December 2016 in “Journal of The American Academy of Dermatology” The normal range for the hair pull test is 2 hairs or fewer, and washing or brushing hair before the test does not affect the results.
research Hair
May 2024 in “Australasian Journal of Dermatology” Alopecia areata causes significant emotional and social challenges, especially with more hair loss.
2 citations
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June 2010 in “Medicina de Familia SEMERGEN” The girl's "dandruff" was actually harmless hair casts, not a hygiene issue.
5 citations
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April 2019 in “DOAJ (DOAJ: Directory of Open Access Journals)” Stopping shaving or removing hair follicles usually resolves Pseudofolliculitis barbae.
2 citations
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March 1942 in “JAMA” 2 citations
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August 2025 in “JAAD reviews.” Frontal fibrosing alopecia significantly affects men, often causing hair loss in eyebrows, beard, and sideburns.
66 citations
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December 1999 in “Journal of Investigative Dermatology” New mutations in the hairless gene may cause hair loss and affect bone development.
April 2026 in “Scientific Reports” The tool accurately tracks eyebrow hair loss in chemotherapy patients.
September 2025 in “Skin Research and Technology” 16 citations
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December 2016 in “ecancermedicalscience” Hair analysis may help detect breast cancer early by identifying changes in lipid content.
February 2025 in “Pediatric Dermatology” January 2012 in “The Journal of Practical Medicine” Chinese Han individuals have fewer hair follicles and hairs than Caucasians and Africans.
July 2018 in “Elsevier eBooks” Acne keloidalis nuchae is a chronic skin condition more common in African men, causing itchy or painful bumps and can lead to permanent hair loss if not treated early.
416 citations
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September 1997 in “Journal of Investigative Dermatology” People with hair loss have more androgen receptors and enzymes in certain follicles, with men and women showing different patterns.
3 citations
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December 1967 in “Australasian Journal of Dermatology” Becker's Melanosis and Hypertrichosis mainly affects young males, causing brown skin patches and extra hair on one side of the upper body.
1 citations
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February 2023 in “Journal of the American Board of Family Medicine” Primary care should recognize and treat hair loss in hijab-wearing individuals with cultural sensitivity.
July 2025 in “International Journal of Trichology” A 6-year-old boy's leg hair loss was due to friction from sitting cross-legged, and it usually resolves on its own.