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Stress can cause hair loss by negatively affecting hair follicles and this effect might be reversed with specific treatments.

Stem cell plasticity is crucial for wound healing but can also contribute to cancer development.

The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.

Stress increases nerve fibers and immune cell activity in mouse skin, possibly worsening skin conditions.

Hair color production is closely linked to the active growth phase of hair in mice and may also influence hair growth itself.

Restoring hair bulb immune privilege is crucial for managing alopecia areata.

The p75 neurotrophin receptor is important for hair follicle regression by controlling cell death.

Skin fat helps with body temperature control and has other active roles in health.

Turing patterns are now recognized as important in developmental biology.

TNF family proteins are crucial for the development of skin features like hair, teeth, and mammary glands.

The skin protects the body and is constantly renewed by stem cells; disruptions can lead to cancer.

Mouse skin can produce and process serotonin, with variations depending on hair cycle, body location, and mouse strain.

Certain genes control the color of human hair by affecting pigment production.

Activin helps skin growth and healing mainly through stromal cells and affects keratinocytes based on its amount.

Lichen Planopilaris and Frontal Fibrosing Alopecia may help us understand hair follicle stem cell disorders and suggest new treatments.

Muscles and nerves that cause goosebumps also help control hair growth.

Environmental factors, hormones, nutrition, and stress all significantly affect skin health and aging.

Menopause reduces skin collagen and elasticity, and while estrogen therapy can help, its risks require careful consideration.

The three estrogen receptor genes are highly expressed in zebrafish neuromasts during development.

S5αR inhibitors might help treat schizophrenia and other mental disorders but need more research.

Minoxidil and finasteride treat hair loss; more research needed for other options.

Msx2 and Foxn1 are both crucial for hair growth and health.

Melanocyte development from neural crest cells is complex and influenced by many factors, and better understanding could help treat skin disorders.

The document concludes that for hair and feather growth, it's better to target the environment around stem cells than the cells themselves.

Macrophages are vital for skin healing, hair growth, salt balance, and cancer defense.

Topical JAK inhibitors may help treat some skin conditions but need more research.

Children with atopic dermatitis often have sleep problems due to itching and may benefit from melatonin, which helps with sleep and skin symptoms.

Sunlight worsens hair loss; protect scalp.

Light can turn on hair growth cells through a nerve path starting in the eyes.

Understanding how hair follicle stem cells work can help find new ways to prevent hair loss and promote hair growth.