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Hair damage shows as fragility, dullness, and discoloration, varies by ethnicity, and is worsened by cosmetic procedures and diseases.

Certain gene variations may increase the risk of alopecia, and platelet-rich plasma treatment can improve hair density in those with hair loss; a rare case of facial Becker's nevus was linked to uneven beard growth.

Babies born after 38 weeks to mothers under 36 years old and not delivered by C-section have a higher risk of neonatal occipital alopecia.

Otter rabbit, mink, and blue fox fur can be identified by their unique hair structures.

Transplanting individual hair follicles can effectively restore natural-looking eyebrows.

Horizontal sectioning helps diagnose hair loss, but Korean follicle differences matter.

Examining scalp tissue under a microscope helps diagnose and understand hair loss diseases.

The symposium concluded that hair growth involves complex processes, including the hair follicle life cycle, the role of the dermal papilla, hair strength, pigmentation, and the impact of diseases and treatments like minoxidil on hair and skin.

Testosterone and finasteride improve muscle strength and size after spinal cord injury.

The European Society of Endocrinology advises individualized long-term management for PCOS, focusing on lifestyle changes, accurate diagnosis, and treatments for associated health risks and symptoms.

A new, quick method was developed to analyze skin lipids, discovering a new ceramide subclass.

Hair testing can detect a single GHB exposure, useful for documenting sexual assault.

Early diagnosis and individualized treatment improve outcomes for Congenital Adrenal Hyperplasia.

Hair cortisol and cortisone levels increase with age, are higher in diabetics, vary by gender, decrease with frequent hair washing, and are lower in winter.

Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.

Trichotillomania involves hair pulling and can be treated with therapy and medication.

The update highlights that non-classic congenital adrenal hyperplasia is common in women with excess male hormones, requires specific hormone tests for diagnosis, and has various treatment options depending on age and symptoms.

Hair elemental analysis could be useful for health and exposure assessment but requires more standardization and research.

Researchers found over 40 compounds in Bituminaria bituminosa, including many flavonoids and some with potential for medical and hair care uses.

Women with PCOS have higher androgen levels that decrease with age but are still higher than in women without PCOS.

The method accurately measures certain steroids in human hair, showing different levels in males and females.

Skin bacteria, specifically Staphylococcus aureus, help in wound healing and hair growth by using IL-1β signaling. Using antibiotics on skin wounds can slow down this natural healing process.

Hair analysis can reveal metabolic changes and potential pregnancy complications.

Men with isolated hypogonadotropic hypogonadism have partial steroid deficiencies, while those with panhypopituitarism have severe deficiencies.

Silver nanoparticles from Ziziphus nummularia leaves have better antibacterial, antifungal, antioxidant, and hair growth effects than the leaf extract alone.

Ceramide helps protect African–American hair from breakage.

Hair proteins have weak spots in their α-helical segments.

Bleaching hair removes its protective top layer and exposes more hydrophilic groups, changing its chemical surface and affecting how it interacts with products.

Hair analysis can detect testosterone in horses after drug administration.

Human scalp hair on mice can effectively monitor mercury exposure.