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Defective T cell metabolism can cause early skin aging and poor hair follicle stem cell function.

Hair loss and aging are caused by the breakdown of a key protein in hair stem cells.

As people age, their hair follicles produce less pigment, leading to gray and white hair, due to factors like reduced enzyme activity and damage to melanocyte DNA.

Aging mice have slower hair regeneration due to changes in signal balance, but the environment, not stem cell loss, controls this, suggesting treatments could focus on environmental factors.

Hair becomes gray and thin as we age, and while most hair loss in older people is due to genetics, there's a chance for gray hair to regain color under certain conditions.

Old hair follicles grew better when moved to a young environment.

Fat tissue under the skin affects hair growth and aging; reducing its inflammation may help treat hair loss.

Aging causes hair loss and graying due to stem cell decline and changes in cell behavior and communication.

Hair follicle stem cells change states with age, affecting hair growth and aging.

Hair becomes thinner, grayer, and may fall out more as people get older, and styling habits can worsen these effects.

Hair gets thinner and grayer with age, and density decreases more in men on top and in women on top and back.

Hair follicle cells age faster and lose pigment due to less catalase, causing hair to turn gray.

Older people's hair becomes less shiny because it gets more uneven and curved.

Communication between blood vessel and hair follicle cells decreases with age, affecting hair growth and blood vessel formation.

Men's hair loss is caused by hormones and genes, and can be treated with medication and surgery, while graying is due to aging and has no prevention except dyeing.

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

Stress can cause early aging in certain skin cells, leading to problems with hair growth.

Exosomes from human hair follicle cells can improve aging hair follicle cell function and help regenerate hair follicles.

p14ARF and p16Ink4a cause hair follicle stem cell aging and dysfunction.

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

PBX1 helps reduce aging and cell death in hair follicle stem cells by decreasing DNA damage, not by improving DNA repair.

The study found that aging hair follicle stem cells change behavior, leading to hair loss, but drugs targeting these cells may help restore hair growth.

Mice skin matures by day 200, leading to aging signs like curved hair follicles and white hairs due to changes in skin stem cells.

The substance AS101 can help hair grow by slowing down hair cell aging and boosting a hair growth protein.

Older mice have stiffer skin with less elasticity due to changes in collagen and skin structure, affecting aging and hair loss.

Dexpanthenol helps human hair follicle cells grow by preventing aging and death, and by supporting growth signals.

The research found that a specific skin cell type not only triggers hair growth but also controls hair color, and that aging can lead to hair loss and color changes.

Melanocyte stem cells in hair follicles are key for hair color and could help treat greying and pigment disorders.

Skin fat has important roles in hair growth, skin repair, immune defense, and aging, and could be targeted for skin and hair treatments.

Low-dose radiation affects hair stem cell function and survival by changing their genetic material's structure.