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.
February 2025 in “Brazilian Journal of Hair Health” The Brazilian candle flame technique can damage hair by melting the cuticle and exposing the cortex.
March 2026 in “bioRxiv (Cold Spring Harbor Laboratory)” Spiny mice have a unique skin structure that helps them heal and regenerate quickly.
April 2017 in “Journal of Investigative Dermatology” Certain mutations in the KLHL24 gene cause a skin disorder by breaking down an important skin protein.
4 citations
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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.
July 2011 in “Journal of Pediatric and Adolescent Gynecology” A 15-year-old girl has a skin condition causing blisters on her feet, likely inherited from her family.
January 2024 in “Revista del Centro Dermatológico Pascua” Avoiding damage and using specific shampoo and supplements improved the hair condition.
84 citations
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June 1970 in “Journal of Investigative Dermatology” 2 citations
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January 1987 in “PubMed” Woolly hair syndrome is a genetic condition causing frizzy, fragile hair.
March 2026 in “Journal of the mechanical behavior of biomedical materials/Journal of mechanical behavior of biomedical materials” Hair cuticles remain stable and resilient under stress due to strong protein content and crosslinking.
The document concludes that severe trauma can cause temporary hair loss, known as Telogen Effluvium, which usually resolves without treatment.
31 citations
,
August 2005 in “The American Journal of Dermatopathology” The study concluded that PKP1 is essential for skin integrity and hair growth, and its dysfunction causes the symptoms of ectodermal dysplasia/skin fragility syndrome.
1 citations
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July 2024 in “International Journal of Dermatology Venereology and Leprosy Sciences” Cysteine strengthens hair, and glutamine fuels hair growth.
20 citations
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January 2015 in “Journal of cosmetic dermatology” Older people's hair cuticles get more easily damaged and lose protective oils, especially in their 40s and 50s.
January 2025 in “SSRN Electronic Journal” 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.
December 2019 in “C&EN Global Enterprise” Thicker hair isn't always stronger.
January 2015 in “Springer eBooks” Healthy hair is crucial to avoid dryness, weakness, and breakage.
June 2019 in “Medicine and science in sports and exercise” The runner's bone injuries were linked to untreated Celiac Disease and low energy availability affecting her bone density.
19 citations
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July 2004 in “Australasian Journal of Dermatology” Her hair grew back normally after she stopped rubbing it.
December 2021 in “Innovation in aging” Frailer men have a higher risk of worsening prostate problems and serious health events needing hospital care.
January 2013 in “The Pan African medical journal” Monilethrix causes short, fragile hair with no specific treatment available.
12 citations
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December 1965 in “Immunology and Cell Biology” Mild skin injury can trigger mineral deposits in rat skin, even without full calciphylactic response.
December 2025 in “Cureus” Avoiding friction and using topical treatments can significantly improve rough skin caused by repeated rubbing.
6 citations
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January 2008 in “Indian Journal of Dermatology” Monilethrix, a genetic hair disorder causing fragile hair, affects three generations in a family.
January 2008 in “대한미용학회지” UV exposure severely damages hair, making it rough and weak.
December 2025 in “Biopolymers” Heat worsens damage in chemically treated hair, especially bleached and straightened hair.
Calcium hydroxide in an ayurvedic product caused hair breakage.
8 citations
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August 1993 in “Colloid & Polymer Science” The observed "toughening" in keratin was actually due to water evaporation, not a real change in keratin.
February 2025 in “Tạp chí Y học Việt Nam” Posterior column injuries are common in tibial plateau fractures, and CT imaging is crucial for accurate treatment planning.