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Hair and nail conditions can stabilize or improve over time, and new treatments show promise.

Hair graying is caused by the loss of pigment cells due to poor maintenance of stem cells in the hair follicle.

Hair growth is cyclic and influenced mainly by local factors.

Melatonin in the skin helps protect against damage from stress and UV rays, and could be used to treat certain skin conditions.

Dermoscopy is a useful tool for identifying features of skin conditions, but more research is needed to define its role in dermatology.

Chemotherapy causes hair loss by damaging hair follicles and stem cells, with more research needed for prevention and treatment.

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

Visible light can damage skin and most sunscreens don't block it well; more research is needed on its effects and protection methods.

Melatonin may benefit skin health and could be a promising treatment in dermatology.

Male hormones, particularly DHT, are linked to male pattern hair loss, and treatments like finasteride can help, but they don't work for postmenopausal women's hair loss, which may have different causes.

Guidelines for diagnosing common hair loss include detailed history, clinical examination, and various diagnostic techniques.

Estrogen therapy can reduce skin aging but has cancer risks.

The dermal papilla is crucial for hair growth and health, and understanding it could lead to new hair loss treatments.

Taxane chemotherapy can cause skin, hair, and nail side effects, which are often under-reported and can affect patient quality of life.

Human hair follicle organ culture is a useful model for hair research with potential for studying hair biology and testing treatments.

The skin's internal clock affects healing, cancer risk, aging, immunity, and hair growth, and disruptions can harm skin health.

Ruby laser pulses best destroy hair follicles during the growth phase and effectiveness varies with laser intensity; melanin is key for targeting, and timing treatments can improve results.

The document concludes that hair is complex, with a detailed growth cycle, structure, and clinical importance, affecting various scientific and medical fields.

Androgens can both stimulate and cause hair loss, and understanding their effects is key to treating hair disorders.

No treatment fully prevents hair loss from chemotherapy yet.

Minoxidil and finasteride effectively treat hair loss.

The document concludes that alopecia areata is an autoimmune disease without a definitive cure, but treatments like corticosteroids are commonly used.

Androgens can both promote and prevent hair growth due to differences in gene expression in hair follicles.

Skin problems can be caused or worsened by physical forces and pressure on the skin.

Epidermal stem cells could lead to new treatments for skin and hair disorders.

Hair usually grows back 1-3 months after treatment for anagen effluvium, and children with Loose Anagen Hair Syndrome often improve by adolescence.

Nanotechnology in dermatology shows promise for better drug delivery and treatment effectiveness but requires more safety research.

The rise in tinea capitis cases in Stockholm is linked to increased African immigration.

The document concludes that understanding and treating hair loss requires recognizing its various types and using appropriate diagnostic tools and treatments.

Minoxidil causes excessive hair growth in almost all patients.