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This review discusses genetic and epigenetic mechanisms that may contribute to aging and presents models suggesting that chromosomal changes could play a key role in the aging process; it reports no new experimental findings.

This study found that in poodles, perifollicular changes in the hair follicle glassy membrane are not always linked to calcium deposition.

Aging causes hair to gray and thin, with the timing of graying varying by race, and factors like oxidative stress and genetics can lead to hair loss.

This study found that age-related changes in scalp dermal fibroblasts, including increased MMP-1 and reduced ECM components, may significantly affect the hair follicle environment and contribute to hair aging.

This study observed that aging leads to significant structural and biological changes in the scalp's hair follicle environment in women, which may affect hair growth.

This review evaluates current research on how hormonal changes due to aging impact voice quality, concluding the vocal cords are sensitive to hormonal fluctuations throughout life but reports no new clinical results.

This review discusses the development, regulation, and aging of the human hair follicle pigmentary system and suggests potential for reversing hair graying by manipulating follicle melanocytes in vitro, but reports no clinical results.

This study found that aged C57BL/6 mice sub-strains exhibit distinct aging patterns, including differences in survival rates, body weight changes, and disease incidences, providing valuable insights for geriatric research using these mice models.

This study found that ageing in women leads to significant structural and biological changes in the scalp hair follicle environment, which may affect hair growth.

This study identified aging-related epigenetic and transcriptomic biomarkers and suggested that curcumin might target and inhibit the JUN gene, implicating potential therapeutic strategies against aging.

This study found that hair luster decreases with age in Japanese females, primarily due to an irregular increase in fiber curvature which affects hair alignment.

In this study, lifelong barley intake in SAMP8 mice was associated with extended lifespan, improved aging-related phenotypes, and beneficial shifts in the intestinal microbiome.

This study concluded that the Mexican primary healthcare sector requires more comprehensive training on the physiological changes and common skin diseases prevalent among the elderly population.

This review examines how male facial anatomy and behavior contribute to sexual dimorphism in facial aging, pointing to factors that accelerate aging in men but presents no new clinical results.

In this study, researchers found that glycan profiles in epidermal stem cells differed between young and old mice, suggesting these changes may serve as molecular markers for aging.

Skin aging reflects overall body aging and can indicate internal health conditions.

This study developed a deep learning-based tool to quantify individual hair fibers in mice, revealing distinct hair phenotypes linked to hormonal, genetic, and age-related factors, and suggesting its potential for new diagnostic methods through hair analysis.

This review discusses the influence of menopausal status on hair parameters in women without alopecia, finding significant differences in hair growth rate, percentage anagen, and hair diameter distributions, particularly in the frontal scalp.

This review discusses the mechanisms of skin aging, highlighting the roles of stem/progenitor cells, genetic and environmental factors, and suggests potential for cell-based therapies, but reports no new experimental findings.

This review found that lip aging differs significantly from facial aging and suggests focusing on distinct anti-aging strategies for lips, considering gender differences and unique physiological characteristics.

This review summarizes major surveys on Behcet's disease, highlighting its systemic manifestations, with primary morbidity linked to ocular involvement causing severe vision loss or blindness.

This article reviews the effects of menopause on skin aging and suggests that hormone replacement therapy may help reverse some of these changes.

This review discusses age-related changes in scalp skin and their potential effects on hair follicle aging, but reports no new clinical results, calling for further investigation.

This review discusses the relationship between estrogen deficiency and skin aging in postmenopausal women, noting potential benefits of estrogen use on skin collagen and elasticity, but reports no new clinical results.

This review addresses the role of skin-resident adult stem/progenitor cells in skin homeostasis, disease, and cancer development, and reports no new research results.

This systematic review and meta-analysis found 30 genetic loci associated with skin ageing phenotypes, noting shared biological pathways in aspects like pigmentation and wrinkling; researchers suggest further studies targeting the same SNP across populations could clarify these associations.

This article reviews factors like hair and skin color that impact perceived age and suggests that lifestyle changes can make one look younger, but reports no new findings.

This study found that elevated luteinizing hormone levels were significantly associated with female pattern hair loss, and implicated LH/LHR signaling in the aging and damage of hair follicles.

In this study, Brazilian postmenopausal women reported that menopause significantly deteriorates the quality of their skin, nails, and hair, negatively affecting self-esteem and quality of life, with a need for better understanding of hormone replacement therapy's dermatological effects.