April 2016 in “Journal of The American Academy of Dermatology” Finasteride and SSRIs together increase impotence and low libido risk in men.
July 2011 in “Microscopy and microanalysis” Human hair's structure makes it tough and resistant to breaking.
May 2025 in “The Journal of Rheumatology” People with lupus find fatigue and skin issues very bothersome, and even small improvements are meaningful.
The man had myotonia, which caused delayed hand grip relaxation.
1 citations
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January 2012 in “Jounal of The Korean Society of cosmetology” Tremella fuciformis Berk helps protect hair from stress-related damage.
41 citations
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May 2018 in “Nutrition and healthy aging” Skin aging is largely due to differences in stiffness and elasticity between skin layers, leading to wrinkles.
5 citations
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March 2017 in “International journal of GEOMATE : geotechnique, construction materials and environment” Adding pig-hair fibers and green mussel shells to concrete can make it stronger.
22 citations
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January 1985 Water makes hair more flexible, especially the outer layer.
March 2023 in “Archives of Physical Medicine and Rehabilitation” Testosterone and finasteride improve muscle strength and size after spinal cord injury.
July 2018 in “Elsevier eBooks” Stopping tight hairstyles can prevent and reduce traction alopecia.
60 citations
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April 2018 in “Clinical, cosmetic and investigational dermatology” Tight hairstyles and chemical relaxers can cause hair loss known as traction alopecia.
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.
Mechanical stress causes ligament thickening through WISP-1 and Hedgehog signaling.
May 2023 in “Journal of Scientific Research” 10 citations
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January 2015 in “International Journal of Trichology” Mechanical stress contributes to hair loss in androgenetic alopecia.
51 citations
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September 2012 in “Biomacromolecules” Disulfide bonds make keratin in hair stronger and tougher.
January 1999 in “Chinses Journal of Hand Surgery” Human hair keratin artificial tendon is a safe and effective tendon substitute.
6 citations
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December 2017 in “International Journal of Dermatology” Traction alopecia is hair loss from pulling on hair too much.
13 citations
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May 2016 in “International journal of biological macromolecules” Keratin's mechanical properties are influenced by hydrogen bonds and secondary structure, and can be improved with the SPD-2 peptide.
23 citations
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January 2017 in “Current Rheumatology Reports” Unique fat cells near fibrotic areas contribute to systemic sclerosis progression.
1 citations
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April 2017 in “Journal of Investigative Dermatology” D-OCT shows increased blood vessel growth in response to tissue damage in Frontal Fibrosing Alopecia and is useful for diagnosis and monitoring.
September 2021 in “CRC Press eBooks” Traumatic alopecia causes hair loss from pulling or rubbing, leading to broken hairs and changes in the scalp.
53 citations
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March 2006 in “Biopolymers” TTD hair is brittle due to fewer sulfur amino acids and unstable disulfide bonds.
1 citations
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May 2017 in “InTech eBooks” Telogen Effluvium is a common hair loss condition that can be short-term or long-lasting and is often caused by stress, illness, or nutritional issues.
20 citations
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January 2005 in “Australasian Journal of Dermatology” A woman had a skin condition with increased normal elastic fibers, not related to other known disorders, likely due to aging.
The document concludes that severe trauma can cause temporary hair loss, known as Telogen Effluvium, which usually resolves without treatment.
3 citations
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April 1978 in “PubMed” The study concludes that traction alopecia, caused by hair styling, can help understand telogen effluvium, a condition of excessive hair loss.
4 citations
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January 2015 in “Sen'i Gakkaishi” Hair and wool strength is affected by the number and type of bonds in their protein structures, with hair having more protein aggregates than wool.
19 citations
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January 2009 in “International review of cell and molecular biology” Hair's strength and flexibility come from its protein structure and molecular interactions.
March 2014 in “Journal of The American Academy of Dermatology” Vitamin D deficiency is common in temporary hair loss, and stress is often a suspected cause.