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UV radiation damages hair by creating holes and peeling cuticle layers.

Estrogens significantly influence hair growth by interacting with receptors in hair follicles and may help regulate the hair growth cycle.

Hair fibers interact through classical forces, which are influenced by treatments and products, important for hair care and other applications.

Outside factors like grooming, chemicals, and the environment can damage hair and cause disorders.

The herbal hair dye is a safe and eco-friendly alternative to conventional dyes.

The document concludes that understanding hair loss and considering medical treatments like minoxidil and finasteride before surgery is important, especially for young patients with rapid hair loss, and that hairline design varies among different ethnicities.

Human hair structure varies by ethnicity, and certain treatments can improve hair condition and appearance.

Twisting hair weakens it, but strength can be recovered at low twist levels.

The document concludes that there are no effective clinical treatments for hearing loss due to hair cell damage, but research is ongoing.

Chickens exposed to loud noise can quickly regain hearing mostly due to repair of the tectorial membrane, not just hair cell regeneration.

Estrogens generally inhibit hair growth and improve skin quality, but their exact effects on hair follicles are complex and not fully understood.

Low-level laser treatment helped rats regrow hair faster after chemotherapy.

Proteins like BSA and keratin can effectively style hair and protect it, offering eco-friendly alternatives to chemical products.

Scaffold improves hair growth potential.

Scanning electron microscopy revealed four distinct hair root shapes in alopecia areata, suggesting a less invasive diagnostic method.

Certain micronutrients may improve hair and nail health, but more research is needed to confirm their benefits.

A protein combining parathyroid hormone and collagen helped hair regrow in mice with a hair loss condition.

A new method helps understand hair shine and various products improve hair care.

Cicatricial alopecia, a permanent hair loss condition, is mainly caused by damage to specific hair follicle stem cells and abnormal immune responses, with gene regulator PPAR-y and lipid metabolism disorders playing significant roles.

Homemade hair treatments can significantly lower drug levels in hair, possibly causing false-negative drug tests.

A new method improves silicone oil coating on hair, enhancing moisture and lubrication.

Diagnose and manage CCCA with thorough history, exams, and labs; treat with anti-inflammatory agents, stress reduction, and stopping harmful hair practices.

Different hair cleaning methods caused varying levels of damage to the hair's outer layer.

Surfactants damage hair, but sealing the cuticle can prevent this.

Hair protein analysis might help identify a person's ethnicity, sex, and age in forensics.

The document concludes that the trichogram is a useful tool for diagnosing hair loss and suggests semi-organ cultures for practical trichological research.

Different oils affect hair flexibility and strength, with their impact varying on whether hair is virgin or bleached.

Cyclosporin extends hair growth in mice, but high-dose corticosteroids block this effect.

Chicken feather gene mutation helps understand human hair disorders.

Feathers are useful for researching growth, regeneration, and the effects of treatments like chemotherapy on hair loss.