March 2026 in “International Journal of Advanced Biochemistry Research” German shepherd hair varies in color and pattern but is flat with a consistent internal structure.
1 citations
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August 2015 in “PubMed” Human hair's strength comes from a honeycomb-like structure and macrofibrils.
April 2026 in “Chinese Chemical Letters” 12 citations
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January 2025 in “Nature Reviews Molecular Cell Biology” 8 citations
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December 2017 in “Small Ruminant Research” Variation in the TCHH gene affects wool curliness in sheep.
4 citations
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August 2023 in “Nature Communications” Mouse zigzag hair bends form due to a 3-day cycle of changes in hair progenitors and their environment.
7 citations
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August 2009 in “Applied Mathematics and Mechanics-English Edition” Hair fibers have fractal patterns with properties related to the golden mean, which may affect their functionality.
May 2023 in “Accounts of chemical research” New methods can better classify curly hair types and lead to improved hair care products.
15 citations
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August 2015 in “Scanning” Corkscrew and cigarette-ash-shaped hairs in tinea capitis are caused by internal hair degradation and external resistance.
22 citations
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January 1985 Water makes hair more flexible, especially the outer layer.
May 2020 in “JOJ Dermatology & Cosmetics” A rare skin condition usually on the face was found on a man's heel.
April 2020 in “International Journal of Cosmetic Science” The study found that minor protein differences between curved and straight Japanese hair are unlikely to significantly affect hair structure.
16 citations
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October 1992 in “Journal of cutaneous pathology” Bubble hair deformity may be caused by hair shaft trauma and can improve with gentle hair care.
27 citations
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March 2018 in “Journal of Experimental Biology” Wool fibre curvature is due to longer orthocortical cells compared to paracortical cells.
3 citations
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January 1989 in “The Nishinihon Journal of Dermatology” A hair cyst can become cancerous, showing specific keratins from the hair sheath.
6 citations
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March 1996 in “Journal of Investigative Dermatology” 26 citations
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August 2014 in “Veterinary Dermatology” Sphynx cats have abnormal hair follicles and keratinization affecting their skin.
15 citations
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May 2009 in “Chemical Physics Letters” A new method accurately measures molecular movement without complex modeling.
4 citations
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June 2021 in “Scientific Reports” Hair fiber shape and curvature are not significantly linked when ancestry is considered.
5 citations
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September 2005 in “Hair transplant forum international” Nature uses midline convergence to make the center of something look denser or thicker.
24 citations
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November 2015 in “Scientific reports” Human hair has a new region with ordered filaments and the cuticle contains β-keratin sheets.
2 citations
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June 2012 in “American Journal of Dermatopathology” A rare neck cyst in a 47-year-old man showed diverse skin cell types and was not linked to HPV.
June 2026 in “Skin Appendage Disorders” Pili annulati may be more common than thought, so recognizing its features is important for diagnosis.
February 2023 in “EAS Journal of Medicine and Surgery” Most Idoma people have a curved hairline due to genetics.
March 2018 in “Journal of Experimental Biology” Hair curliness is caused by the arrangement and length of two different cell types.
January 2019 in “CLINICAL AND EXPERIMENTAL MORPHOLOGY”
May 2006 in “Dermatologic Surgery” Most nonbald men's multi-hair follicles are naturally positioned perpendicular to a line from the scalp's crown, which is important for natural-looking hair transplants.
Curly hair may be caused by a muscle contraction, and muscle relaxants might help treat it.
1 citations
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April 2019 in “PubMed” The medulla in Asian scalp hair has a tubular structure that allows ions and large molecules to flow through it.
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.