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January 2002 in “Nihon Keshouhin Gijutsushakaishi/Journal of S C C./Nihon Keshouhin Gijutsushakai kaishi” The cuticle significantly contributes to hair stiffness, making up about 60% of the total bending stress.
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January 2017 in “International journal of trichology” Castor oil can cause severe hair matting.
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January 1998 in “Studia Anglica Posnaniensia: international review of English Studies” Wound-induced hair growth may help study regeneration and aging, but it's unclear if this ability decreases with age.
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August 2020 The Shaven mutation in mice affects hair growth and causes a greasy coat due to abnormal lipid content.
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February 2025 in “PLoS ONE” Key proteins influence wool quality by affecting hair follicle development in sheep.
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January 2014 in “Indian dermatology online journal” Monilethrix is a genetic hair disorder causing fragile, beaded hair with no effective treatment.
December 2021 in “INDIGO (University of Illinois at Chicago)” Sheep hair follicle development and wool curvature are influenced by specific cell types and gene expressions.
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April 2017 in “Journal of structural biology” Human hair keratin fibers have a detailed nano-scale structure that changes with different conditions.
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July 2008 in “Expert Review of Dermatology” Normal hair thickness varies by scalp area and a mix of hair thicknesses is typical in healthy individuals.
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January 1985 Water makes hair more flexible, especially the outer layer.
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January 2017 Hair movement can indicate hair quality and health.
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April 2000 in “Experimental Dermatology” A new gene mutation causes a rare type of hair loss.
January 2006 in “DOAJ (DOAJ: Directory of Open Access Journals)” Loose anagen hair syndrome causes easily pulled, thin hair in kids but is harmless and temporary.
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March 2011 in “Archives of Dermatology” Corkscrew hair may be a new sign for quickly diagnosing scalp fungus in black children.
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May 2008 in “Applied surface science” Mummy hair from the Taklamakan desert has calcium and phosphorus inside.
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November 2013 in “Pediatric and Developmental Pathology” Over half of the children had abnormal hair under a microscope, with many having genetic hair conditions.
January 2012 in “Journal of the Dermatology Nurses’ Association” The document explains hair growth, hair loss types, and other hair-related terms.
July 2016 in “Indian journal of science and technology” Neonate scalp hair is thinner, lacks a medulla, and has smaller follicles compared to adult hair.
January 2015 in “Chinese Veterinary Science” Recognizing ultrastructures of cashmere goat hair follicles helps identify and locate follicle layers.
March 2021 in “CRC Press eBooks” The document concludes that different patterns of hair thickness and scalp changes can help diagnose types of non-scarring hair loss.
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December 2016 in “Frontiers in Psychology” Hair style affects perceptions of age, health, and attractiveness more than hair color does.
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February 1992 in “Development” Type II keratin genes are crucial for hair follicle differentiation and have a conserved structure and expression pattern.
The "sinuskissen" in cat hair follicles is mostly connective tissue, affecting fluid flow.
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June 2003 in “Journal of Investigative Dermatology Symposium Proceedings” Accurate clinical, histological, and genetic methods are key for understanding and treating hair disorders.
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September 2024 in “Veterinary Dermatology” Trichography is important for diagnosing hair fragility in Pomeranian dogs with hair cycle issues.
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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.