161 citations
,
July 2003 in “ACM Transactions on Graphics” Researchers developed a new model for more realistic computer graphics rendering of hair by considering how light scatters on hair fibers.
49 citations
,
June 2004 in “Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences” Human hair becomes weaker and stretches more easily at higher temperatures.
August 2024 in “Biophysics Reviews” Mammal hairs have different internal structures.
12 citations
,
January 2013 in “Indian dermatology online journal” The document reports a unique case of woolly hair with a combination of conditions not previously seen together.
May 2024 in “Frontiers in medicine” A genetic mutation in the LIPH gene causes tightly curled hair that stops growing in some Japanese individuals.
3 citations
,
March 2009 in “Hirosaki University Repository for Academic Resources (Hirosaki University)” Hirosaki hairless rats have sparse, twisted hair due to missing hair keratin genes.
September 2021 in “CRC Press eBooks” Traumatic alopecia causes hair loss from pulling or rubbing, leading to broken hairs and changes in the scalp.
September 2016 in “Journal of dermatological science” The conclusion is that the variation in hair thinness in patients is mostly due to the amount of underdeveloped hairs, and treatments that thicken fine hairs might work for those with mild to severe conditions.
7 citations
,
May 1988 in “International Journal of Dermatology” The patient's hair has unique structural differences with alternating bright and dark bands.
264 citations
,
October 1958 in “Archives of Dermatology” A 4-year-old girl has a rare hair condition causing fragile, short hair.
6 citations
,
January 2021 in “Journal of the mechanics and physics of solids/Journal of the Mechanics and Physics of Solids” The model shows that factors like follicle shape and stiffness are key for hair growth and anchoring.
10 citations
,
January 1971 in “The American midland naturalist” A simple method can show hair's surface pattern.
5 citations
,
March 2009 in “Pediatric Dermatology” The study found that pili bifurcati causes hair to intermittently split into two branches, each with its own outer layer.
90 citations
,
July 1993 in “Journal of Investigative Dermatology” 17 citations
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June 1990 in “PubMed” Hair varies in size and features depending on body region.
September 2014 in “Journal of the American Academy of Dermatology” The girl likely has Loose anagen hair syndrome, which may improve on its own or with minoxidil.
6 citations
,
December 2011 in “Clinical and Experimental Dermatology” A woman developed rare, unexplained curly hair on her scalp and eyelashes.
19 citations
,
July 2004 in “Australasian Journal of Dermatology” Her hair grew back normally after she stopped rubbing it.
September 1972 in “大会学術講演梗概集. 構造系” The document explains common hair disorders and the basics of hair anatomy and life cycle.
January 2002 in “Europe PMC (PubMed Central)” The model successfully simulates human hair growth and patterns, including hair loss types.
24 citations
,
November 2015 in “Scientific reports” Human hair has a new region with ordered filaments and the cuticle contains β-keratin sheets.
January 2008 in “Medical Entomology and Zoology” April 2016 in “Journal of the American Academy of Dermatology” A 4-year-old girl had a rare hair disorder affecting only part of her scalp.
12 citations
,
November 1987 in “Pediatric dermatology” Four children had unmanageable pale blond hair due to uncombable-hair syndrome.
January 2006 in “Seibutsu Butsuri” Curly and straight hair differ in how their internal fibers are arranged.
1 citations
,
January 2018 in “Acta dermato-venereologica” A teenager's hair with alternating white and dark bands, known as Pili annulati, is a genetic condition that is usually harmless and often considered attractive.
February 2013 in “Journal of the American Academy of Dermatology” Uncombable hair syndrome causes dry, frizzy hair that can't be combed flat, seen in a young child.
23 citations
,
December 1991 in “Annals of the New York Academy of Sciences” Balding scalps slow down hair growth.
17 citations
,
November 1967 in “American Journal of Anatomy” Hairless mice have longer hair follicles and abnormal structures during the catagen phase.