research Changes in the mechanical properties of human hair under various conditions
Hair coloring and chlorine change hair strength differently.
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research Quantifying the effects of repeated dyeing: morphological, mechanical, and chemical changes in human hair fibers
Repeated hair dyeing significantly damages hair.
research Age-associated thin hair displays molecular, structural and mechanical characteristic changes
Older thin hair is not just thinner but also has different shape, structure, and stiffness.
research Expansion of specialized epidermis induced by hormonal state and mechanical strain
Hormones and stretching both needed for nipple area skin growth in mice.
research Efeito da radiação ultravioleta na cor, na perda proteica e nas propriedades mecanicas do cabelo
UV radiation causes significant protein loss and color changes in hair, especially blond hair.
research Changes in intraepidermal nerve fiber and Langerhans cell densities in the plantar skin of rats after mercuric chloride exposure
Mercury exposure damages small nerve fibers in rats' skin.
research Grey hair: clinical investigation into changes in hair fibres with loss of pigmentation in a photoprotected population
Grey hair is wilder, drier, and less manageable than pigmented hair.
research Deciphering principles of morphogenesis from temporal and spatial patterns on the integument
The conclusion is that skin and hair patterns are formed by a mix of cell activities, molecular signals, and environmental factors.
research What factors play a role in unhealthy hair?
Environmental, chemical, mechanical, and personal health factors can all damage hair and contribute to hair loss or changes in hair quality.
research Study of Perm-damage to Hair and Protection by Conditioner
Both conditioners help protect hair from perm damage, but their effectiveness varies.
research Hair Shaft Damage from Heat and Drying Time of Hair Dryer
Using a hair dryer at 15 cm with continuous motion causes less damage than natural drying.
research 660 Complex cellular flows shape feather follicle topology
Cell movements and forces shape feather growth in chicken skin.
research Skin metabolism in obesity: A narrative review
Obesity harms skin health by causing inflammation and delayed wound healing.
research Keratin network modifications lead to the mechanical stiffening of the hair follicle fiber
Changes in keratin make hair follicles stiffer.
research Tissue Mechanics in Haired Murine Skin: Potential Implications for Skin Aging
Older mice have stiffer skin with less elasticity due to changes in collagen and skin structure, affecting aging and hair loss.
research KINEMATIC ALIGNMENT TECHNIQUE IN TOTAL KNEE ARTHROPLASTY CHANGES FEMORAL SIZING
Kinematic alignment in knee surgery often requires smaller femoral components than mechanical alignment.
research The Role of Interface Geometry and Appendages on the Mesoscale Mechanics of the Skin
Skin's uneven surface and hair follicles affect its stress and strain but don't change its overall strength, and help prevent the skin from peeling apart.
research 211 Effect of 1α,25-dihydroxyvitamin D3 on mechanical properties of hairless mouse skin
Vitamin D3 applied to mouse skin caused more wrinkles and sagging due to changes in the skin's outer layer.
research Effect of equilibrium pH on the structure and properties of bleach‐damaged human hair fibers
Hair's structure and properties change with pH; acidic pH maintains strength and less swelling, while alkaline pH increases water content and swelling.
research In situ tensile deformation characterization of human hair with atomic force microscopy
AFM helped show how hair changes under tension and the effects of damage and conditioner.
research Morphological Changes of Human Hair Related to "Graying".
Gray hair affects hair's movement and appearance, making it less bouncy and more wavy.
research Wetting behavior of human hair fibers
Human hair's ability to get wet is complex and can change with treatments, damage, and environment.
research Quantifying hair shape and hair damage induced during reshaping of hair.
New imaging and testing methods can effectively assess hair shape changes and damage.
research Photoageing of Hair Fiber and Photoprotection
Sunlight damages hair, causing cuticle loss, protein changes, and discoloration.
research Mechanical forces in skin disorders
Skin problems can be caused or worsened by physical forces and pressure on the skin.
research Recommendations from the 2023 International Evidence-based Guideline for the Assessment and Management of Polycystic Ovary Syndrome
The 2023 guideline for PCOS suggests using updated diagnostic criteria, assessing related health risks, and recommends lifestyle changes and specific treatments for symptoms and fertility issues.
research Expansion of specialized epidermis induced by hormonal state and mechanical strain
Nipple area expansion in mice needs both pregnancy hormones and mechanical strain.
research Effect of ethnicity and treatments on in situ tensile response and morphological changes of human hair characterized by atomic force microscopy
Different ethnicities and treatments affect human hair strength and structure.
research Skin aging as a mechanical phenomenon: The main weak links
Skin aging is largely due to differences in stiffness and elasticity between skin layers, leading to wrinkles.
research Thermal and mechanical transitions in keratins and their relevance for hair cosmetics
High temperatures and cosmetic processes can damage hair keratin, affecting its structure and strength.