Hair can't be as strong as Rapunzel's because it's impractical to scale up due to defects.
24 citations
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September 1997 in “PubMed” Loose anagen hair can appear at any age and may improve over time.
12 citations
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May 2012 in “Endocrinology and metabolism/American journal of physiology: endocrinology and metabolism” Human scalp hair follicles can be used to study how prolactin affects hair growth and cell death.
December 2016 in “Journal of Dermatology and Dermatologic Surgery” IFHUT shows better hair growth than FUE, but needs improvements in positioning, speed, and accuracy.
Miniflap hair restoration is a method to regrow hair.
3 citations
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June 2013 in “Journal of Dermatology” Hairpieces improve quality of life for women with hair loss.
52 citations
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April 2016 in “Journal of the American Academy of Dermatology” Certain black hairstyling practices increase the risk of traction alopecia, requiring better management and education.
18 citations
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February 2006 in “Genomics” A new genetic mutation in mice causes permanent hair loss and skin wrinkling.
4 citations
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April 1983 in “The Journal of Dermatology” A 15-year-old girl with hypothyroidism had excess hair and skin issues due to blocked hair follicles.
98 citations
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April 2003 in “Die Naturwissenschaften” 51 citations
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March 2001 in “Clinics in dermatology” Bleaching damages hair, making it rougher and weaker.
March 2025 in “Forum Dermatologicum” Trichoscopy is crucial for accurately diagnosing fibrosing alopecia in pattern distribution.
January 2009 in “Chinese journal of Clinical Medicine” 30 citations
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January 1994 in “Micron” Mature hair surfaces are formed by keratinized cells with developed layers, not just modified plasma membranes.
1 citations
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March 2000 in “Chemical & engineering news” Companies buy other businesses to stay trendy and meet consumer needs in hair care.
July 2024 in “International Journal of Women’s Dermatology” Many Hijabi women worry about hair loss, but fewer actually experience it.
12 citations
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June 2006 in “Anais Brasileiros de Dermatologia” The study found average numbers for different types of hair follicles in the scalp and observed differences between men and women, suggesting reasons for more common hair shedding in women.
January 2017 in “European Journal of Dermatology” Excessive facial hair growth can indicate an underlying cancer.
January 2018 in “bioRxiv (Cold Spring Harbor Laboratory)” Researchers found key regions in the mouse hairless gene that control its activity in skin and brain cells, affecting hair follicle function.
9 citations
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April 2019 in “Journal of structural biology” Hair's internal fibers are arranged in a pattern that doesn't let much water in, and treatments like oils and heat change how much water hair can absorb.
39 citations
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August 2018 in “Scientific reports” Claudin-1 is important for the barrier function and growth of hair.
June 2014 in “Professional Beauty” Thicker hair resists fungal damage better, and hair color doesn't affect susceptibility.
16 citations
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September 2008 in “American Journal of Orthodontics and Dentofacial Orthopedics” Wearing orthodontic headgear can cause reversible hair loss if detected early.
June 2023 in “Zenodo (CERN European Organization for Nuclear Research)” 26 citations
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February 1991 in “PubMed” Trichotillomania can be identified by a "Friar Tuck sign" and nail-biting.
April 2020 in “International journal of research in dermatology” An 8-year-old girl has a rare, irreversible hair loss condition caused by a genetic mutation.
9 citations
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January 2001 in “Dermatology” Pili anulati may cause hair loss, proper diagnosis and treatment needed.
January 2007 in “Linchuang pifuke zazhi” HIF-1α in fibroblasts boosts hair growth and health.