December 2023 in “Data in Brief” Curly hair's strength and flexibility vary with moisture and temperature.
8 citations
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October 1993 in “International Journal of Dermatology” The man's scalp infection was treated successfully, and his hair grew back.
A genetic variant in the KRT71 gene may cause loose anagen hair and wooly hair, and symptoms might improve with age.
July 2023 in “SAS journal of medicine” Certain hair styling methods, like weaving and straightening, are a main cause of hair loss in women from Bamako.
Hydrophobic modifications make human hair less affected by water.
March 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Ratanjot root oil helps hair grow and conditions and colors it naturally.
March 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Ratanjot root oil helps hair grow and conditions and colors it naturally.
Prussian Blue causes hair cuticles to detach, weakening the hair.
March 2023 in “The primary care companion for CNS disorders” Dengue fever can cause hair loss that may lead to serious psychological issues like Body Dysmorphic Disorder in young women.
November 2025 in “Communications Biology” Human hair contains many different molecules that change along its length, influenced by personal care products.
December 2024 in “Skin Appendage Disorders” Traction alopecia reduces hair density and thickness; proper hair care can help prevent it.
January 2025 in “Figshare” Stress can cause sudden hair whitening in children, but it may reverse on its own.
1 citations
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October 2019 in “Epileptic disorders” A girl with Pitt-Hopkins syndrome developed curly hair as a rare side effect from the epilepsy drug perampanel.
January 2025 in “Figshare” Stress can cause sudden hair whitening in children, but it may reverse on its own.
17 citations
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February 2015 in “Experimental Dermatology” Keratins are crucial for hair strength, and mutations in certain keratin genes cause hair disorders.
January 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Chronic stress can cause hair loss, but relaxation and gentle care can help manage it.
January 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Chronic stress can cause hair loss, but relaxation and gentle care can help manage it.
6 citations
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January 1997 in “Medical Mycology” The fungus Piedraia hortae damages hair by slowly breaking down its layers, leading to long-lasting infection.
10 citations
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November 2019 in “Journal of the European Academy of Dermatology and Venereology” The RAS pathway affects hair growth differently in CFCS and CS.
Human hair can almost fully recover its structure within about 1,000 minutes after being stretched.
4 citations
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October 2008 in “International Journal of Dermatology” A toddler's chronic finger ulcer was successfully treated after removing a hair causing hair-thread tourniquet syndrome.
3 citations
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September 1973 in “Archives of dermatology” Applying a tretinoin cream can remove hair plugs and treat trichostasis spinulosa.
May 2025 in “Dermatology Reports” A genetic mutation in the LIPH gene causes a rare hair disorder with sparse, curly hair.
144 citations
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May 1990 in “Journal of the American Academy of Dermatology” January 2011 in “대한피부과학회지” A 7-year-old girl was diagnosed with trichothiodystrophy due to low sulfur levels in her hair.
13 citations
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October 2008 in “PubMed” Japanese women's curved hair has an uneven internal structure and varying amino acid composition.
2 citations
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July 2005 in “Baylor University Medical Center Proceedings” A 4-year-old girl was diagnosed with trichotillomania, a condition where she pulls out her hair, which may resolve on its own or require therapy.
September 2017 in “Pediatric Dermatology” A 14-year-old boy was diagnosed with a rare hair condition that may lead to hair thinning and has no known effective treatments.
August 2021 in “Oxford University Press eBooks” New treatments for hair-pulling disorder focus on personalized approaches and combining therapies for better results.
May 2009 in “International Journal of Cosmetic Science” Permanent waving damages hair protein and weakens hair, especially with repeated treatments using sodium thioglycolate.