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This study details how very long human hair naturally ages, showing cuticle wear and internal fiber changes that may inform new hair care product designs.

This review reports on the effects of aging on hair characteristics such as pigmentation, growth, and structural properties across genders and ethnicities, highlighting the importance of scalp health and suggesting cosmetic solutions to improve the appearance of aged hair.

This review examines the differential aging of melanocytes in hair follicles and skin, and reports no new findings; the authors suggest further research is needed to understand these processes.

This review examines the effects of menopause on skin aging and suggests hormone replacement therapy may improve some symptoms, without providing new clinical findings.

This study found that Pdgfα signaling is crucial for maintaining dermal adipose tissue in mice by initiating dermal adipocyte stem cell proliferation, with implications for age-related skin defects.

This research observed that chronological age, rather than hearing loss, primarily affects the auditory cortex in aging, and found that brain aging in PolG mice mirrored that of wild-type counterparts, suggesting differential tissue sensitivity to mitochondrial dysfunction.

This review discusses the potential for new retinoids, topical antiandrogens, and alternative therapies to surpass tretinoin in treating cutaneous aging, but reports no clinical results.

This article reviews how chronological aging affects female scalp hair growth and suggests that multiple factors, including environmental influences, contribute to female pattern hair loss; no new clinical results are presented.

This paper reviews Behcet's disease, noting diverse manifestations with oral aphthosis most common, but reports no new results beyond existing surveys and case series.

This study found that both genetic and environmental factors influence appearance-related aging in women, with skin wrinkling, hair graying, and sun damage significantly affecting perceived age more than chronological age.

This review highlights advancements in skincare aimed at addressing the effects of aging and environmental factors, including new techniques to rejuvenate skin cells and reduce inflammation, though challenges like complex routines and costs limit widespread adoption.

Skin changes throughout life, from development before birth to aging effects like wrinkles, influenced by both genetics and environment.

This review explores genetic and lifestyle factors influencing hair diversity and reports no new findings, calling attention to the potential for future discoveries in genetic and epigenetic research.

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 narrative review explores how psychological stress may contribute to premature skin aging by affecting dermal collagen and elastin remodeling through neuroendocrine, molecular, and cellular pathways, highlighting potential therapeutic targets to preserve skin structure and function.

This study found that increased hair graying was associated with a greater coronary atherosclerotic burden, suggesting it could serve as a risk marker for coronary artery disease independent of age.

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 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 study suggests that dermal adipocytes might play a key role in skin aging due to their transformation into fibrotic structures in chronically photo-damaged skin.

This study suggests that age-related changes in skin elasticity reduce its stability against wrinkling, and anti-aging strategies should focus on addressing elastic mismatches between skin layers.

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 highlights recent biological and technological strategies in anti-aging research aimed at delaying aging and related diseases, improving skin healing, and potentially restoring hair growth.

This review explores how adipose-derived stem cells contribute to skin homeostasis and highlights recent advances in their clinical applications in dermatology, but it reports no new clinical results.

This review discusses the impact of menopause-related oestrogen deficiency on skin ageing and suggests that oestrogen use may improve collagen and skin elasticity, but it reports no clinical trial results.

This study reports that the tetrapeptide AcSDKP significantly promotes skin and hair health in vitro and ex vivo, suggesting it could be used cosmetically to counteract skin aging and hair loss.

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

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 the effects of estrogen on skin aging and highlights potential therapies, but reports no new clinical findings.

This review discusses the hyperfunction theory of aging as a key factor in COVID-19 vulnerability, highlighting the potential of anti-aging interventions like rapamycin to reduce this risk.

This review discusses the effects of estrogens on skin aging and highlights the potential benefits of estrogen replacement therapy and selective estrogen receptor modulators for improving skin health in postmenopausal women, but reports no new clinical findings.