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Stress stops hair growth in mice by causing early hair growth phase end and harmful inflammation through a specific nerve-related pathway.

Low fluence photoepilation temporarily removes hair by targeting the hair follicle's pigmented area without severe damage.

The document concludes that understanding hair structure is key to diagnosing hair abnormalities and recommends gentle hair care for management.

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

Trichoscopy is a useful non-invasive method for diagnosing different hair loss conditions.

Children with loose anagen hair have easily pluckable hair due to root sheath problems, and it might improve without treatment.

Japanese women typically start experiencing hair loss after 40, with reduced hair density and thickness being the main factors.

Hair grays due to oxidative stress and fewer functioning melanocytes.

Dermatoscopy is a useful tool for diagnosing hair disorders and can help choose samples for more detailed analysis.

Hair analysis for drugs needs a better understanding of how drugs enter hair, considering factors like hair structure and pigmentation.

Permanent hair dye damages hair but it mostly recovers after 8 weeks; using certain hair care products can help repair it.

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.

White hair grows thicker and faster than black hair due to higher activity of growth-related genes and proteins.

The most common causes of hair loss in children in South-East Nigeria are fungal infections and alopecia areata.

The most common causes of hair loss in Jordanian children are fungal infections, autoimmune hair loss, and hair shedding after fever, with zinc deficiency also being a notable cause.

Different populations have distinct hair structures related to their ancestry.

The marine complex supplement significantly improved hair growth in men with thinning hair without adverse effects.

Light microscopy is useful for diagnosing different hair disorders.

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

Ultraviolet rays damage hair, smoking may cause hair loss, and good nutrition is important for hair health, but genetics mainly decide hair thickness.

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

Hair care cosmetics affect hair health; know products, ingredients, and procedures.

Valproic acid can cause reversible hair curling and persistent hair thinning.

Palmitoyl tetrapeptide-20 may help reduce hair greying and increase melanin production.

Photoacoustic imaging can accurately assess hair follicle density and orientation for hair transplant planning.

Hair restoration surgery redistributes existing hair to achieve a natural look, with visible regrowth in 3-4 months and rare complications, mostly aesthetic.

Lasers in hair transplantation show promise but are not yet standard, with current methods causing some side effects and needles still being preferred for creating recipient sites.

Certain diseases like AIDS and lupus can make African hair become silky.

Dr. Vera H. Price's 1979 work emphasizes the importance of accurate diagnosis and personalized treatment for hair loss.

Chemical hair straightening improves smoothness and shine but may cause side effects, suggesting a need for safer methods.