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Skin aging is a complex process influenced by various factors, leading to wrinkles and sagging, and should be considered a disease due to its health impacts.

Collagen and TGF-β2 help maintain hair cell shape and youthfulness.

Scientists created a 3D skin model that shows typical signs of aging, which can help in aging research.

Stem cell niches are crucial for regulating stem cell behavior and tissue health, and their decline can impact aging and cancer.

The circadian clock affects skin stem cell behavior, impacting aging and cancer risk.

Skin aging is due to impaired stem cell mobilization or fewer responsive stem cells.

Balanced vitamin D levels are crucial to delay aging and prevent related diseases.

MicroRNAs play a crucial role in skin and hair health, affecting everything from growth to aging, and could potentially be used in treating skin diseases.

Androgen receptor signaling causes early aging of cells important for hair growth by damaging their DNA.

Ginsenoside Rb1 slows down aging in mice by affecting cell growth, cell death, and metabolism.

Aging changes sugar molecules on skin stem cells, which may affect their ability to repair skin.

Hair aging and loss are caused by genetics, hormones, environment, and grooming, with treatments like minoxidil effective for certain types of hair loss.

New findings improve our understanding of how wounds heal and can be applied to medical treatments.

Hair follicle studies suggest that maintaining telomere length could help treat hair loss and graying, but it's uncertain if mouse results apply to humans.

Aging reduces the ability of human hair follicle cells to form new cell colonies.

Hair aging is inevitable, but using the right hair care products can help maintain hair health.

Aging changes hair stem cells and their environment, leading to gray hair and hair thinning, but understanding these changes could help develop treatments for hair regeneration.

Middle-aged skin shows aging signs, and quercetin might help delay them.

Cosmeceuticals are popular for their skin health benefits and anti-aging effects.

Aging reduces skin stem cell function, leading to changes like hair loss and slower wound healing.

A new tool can analyze hair to detect changes due to hormones, genetics, and aging.

The document concludes that scalp health is influenced by complex factors affecting sebaceous glands, including hormones, aging, and various substances.

Smoking harms the skin, causing early aging and increasing cancer risk, but stopping smoking can improve skin health.

Skin surface lipids are important for skin health and altering them could help prevent aging and treat skin conditions.

Fat cells are important for healthy skin, hair growth, and healing, and changes in these cells can affect skin conditions and aging.

Different types of facial fat affect aging and treatment outcomes; more research is needed to enhance anti-aging procedures.

Topical retinoids effectively improve photodamaged skin.

Human hair contains diverse proteins, including keratins and histones, which could help assess hair health and aging.

Vitamin D might help regulate insulin in the body, but taking Vitamin D supplements doesn't clearly prevent or improve type 2 diabetes. More research is needed.