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Graying hair happens due to aging and might be delayed by new treatments.

Aging causes changes in the scalp that can affect hair growth and lead to older-looking hair in women.

Hair greying is linked to reduced ATM protein in hair cells, which protects against stress and damage.

About 20% of Japanese macaques had head alopecia, and stress and environment might cause hair loss.

The document concludes that various childhood hair and nail disorders exist, some may improve on their own, and advances in genetics and immunology could enhance treatment and counseling.

Certain immune cells are more common on the top of the head and might help predict or treat common hair loss.

Redheaded people may have evolved to efficiently make vitamin D in areas with less sunlight.

Hair restoration for East Asians should consider their unique characteristics like head shape, hair thickness, and hair density, and use modified procedures and treatments to minimize scarring and maintain hair density.

The new SFS Scale predicts hair transplant difficulty using hair and skin types, with thick skin and coily hair being hardest to work with.

Men with less sun-sensitive skin have lower PSA levels, while men with more sun-sensitive skin have higher PSA levels.

Hair ages due to various factors and treatments like minoxidil and finasteride can help, but more research and better public awareness are needed.

Some domesticated animals have the same genetic skin diseases as humans, which can help doctors understand human genetic mutations.

The document concludes that hair loss is influenced by genetics and other factors, and while treatments like finasteride can help, they have limitations and side effects.

Microneedling with platelet-rich plasma helps dog hair regrow faster than microneedling alone.

Nineteenth-century British drama closely reflected the era's societal values and concerns.

Hair loss in Androgenetic alopecia (AGA) is due to altered cell sensitivity to hormones, not increased hormone levels. Hair growth periods shorten over time, causing hair to become thinner and shorter. This is linked to miscommunication between cell pathways in hair follicles. There's also a change in gene expression related to blood vessels and cell growth in balding hair follicles. The exact molecular causes of AGA are still unclear.

The gene Foxn1 is important for hair growth, and understanding it may lead to new alopecia treatments.

The document concludes that treating skin conditions should include psychological care and a multidisciplinary approach is essential for effective management.

Redheaded people have higher levels of a vitamin D precursor, suggesting red hair may be an adaptation for better vitamin D synthesis in areas with less sunlight.

Skin health and repair depend on the signals between skin stem cells and their surrounding cells.

Melatonin directly affects mouse hair follicles and may influence hair growth.

Skin issues can indicate immune system problems.

Bmpr2 and Acvr2a receptors are crucial for hair retention and color.

Both gene and non-gene areas of DNA evolved to make some mammals hairless.

The study found that the hair loss condition in Cesky Fousek dogs is influenced by multiple genes affecting skin and muscle structure, fat metabolism, and immunity.

The Hotz-Celsus surgery successfully fixed inward-turning eyelids in cattle.

Hair loss in Androgenetic Alopecia is caused by genetics, aging, and lifestyle, leading to hair follicle shrinkage and related health risks.

Hairlessness in mammals is due to complex genetic changes in both genes and regulatory regions.

Minoxidil and Finasteride are effective for male baldness; more research is needed for hair aging treatments.