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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.

Mobile phone radiation can cause DNA damage in human hair root cells.

Measuring reproductive hormones in brown bear hair could help identify their sex and reproductive state, but better collection methods or lab techniques are needed.

Cooling hair micrografts during transplantation does not improve their survival or growth.

Finasteride improves surrounding scalp hair and increases hair density after hair transplant.

Loss of Fz6 disrupts hair follicle and associated structures' orientation.

3-Deoxysappanchalcone helps human hair cells grow and stimulates hair growth in mice by affecting certain cell signaling pathways.

Human hair has a new region with ordered filaments and the cuticle contains β-keratin sheets.

Finasteride improves surrounding scalp hair and increases hair density after hair transplant.

Many elderly women experience unwanted facial hair and various hair loss conditions, with treatments available for each condition.

Aging makes hair thinner and rougher, with less clear edges.

A newly found RNA in Cashmere goats may play a role in hair growth and development.

Men typically shed about 10 hairs in 60 seconds, and this amount doesn't increase with age.

Hair absorbs different substances from solutions based on pH levels.

The study found that a polymer treatment changes the charge on hair surfaces, making bleached hair smoother and less porous.

Curly hair breaks more easily, especially with chemical treatments, but simpler grooming reduces breakage.

The new test can measure very small amounts of testosterone in hair, and grinding the hair up first gives more accurate results.

Hair absorbs alkali bromide salts and water, affecting its structure, with absorption decreasing at higher temperatures.

Hair's structure and properties change with pH; acidic pH maintains strength and less swelling, while alkaline pH increases water content and swelling.

Disrupted sleep patterns can harm skin and hair cell renewal, but melatonin might help.

Intense pulsed light treatment effectively reduces underarm hair by making hair follicles smaller and extending their resting phase.

Melatonin increases cashmere quality in goats but reduces their milk production and doesn't affect their offspring's hair growth.

Researchers developed a method to measure drugs in hair follicles and found that both water-loving and fat-loving drugs can be detected after being applied to the skin.

Targeting FGFR-1 with antisense oligonucleotides may help treat baldness by increasing hair follicle activity.

Monkeys with hair loss during pregnancy showed higher stress hormone levels and invested differently in their offspring.

Tying a knot can measure hair friction, useful for medical applications.

Goat hair growth and follicle activity change with the seasons and differ between males and females.

Hair stiffness is higher when it has more para-like cortical cells.

PRGF treatments increased hair number and thickness in people with hair loss, with more injections leading to better results.

GPIGS peptide increases thick hair growth in balding Japanese men.