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Most insurance companies do not cover extra gender-affirming surgeries, with coverage being low and inconsistent.

Defective mink guard hairs have split tips and missing cuticle cells, causing a metallic sheen.

Chemicals and body size might change when puberty starts and progresses, but more research is needed to confirm this.

A genetic change in the EDAR gene causes the unique hair traits found in East Asians.

Dental erosion is common in adolescents and is linked to diet and higher socioeconomic status.

D-OCT shows increased blood vessel growth in response to tissue damage in Frontal Fibrosing Alopecia and is useful for diagnosis and monitoring.

Women with PCOS have more emotional and body image issues than healthy women.

Drinking lots of sugary drinks may increase the risk of hair loss in young men.

Some people in Saudi Arabia experienced hair loss after the COVID-19 vaccine, more often in women and those without prior hair loss.

Trichoscopy and pathological examination both have unique benefits and cannot completely replace each other in evaluating hair.

Yellow dots and short vellus hairs are the most common signs of Alopecia Areata (AA), and trichoscopy can help diagnose AA and track treatment progress.

Mechanical forces are crucial for shaping cells and forming tissues during development.

Thioglycolic acid and L-cysteine change hair structure differently during perms, affecting hair strength and curling efficiency.

Polycystic ovarian shape is a genetic sign of PCOS and its hormonal and metabolic features can be inherited.

Sex hormones, especially estradiol, can change chicken feather shapes and colors.

Hair properties are interconnected; a comprehensive, cross-disciplinary approach is essential for understanding hair behavior.

About 21.3% of young, healthy Chinese men experience hair loss. Hairlines are mostly linear or have a central protrusion. Hair is densest on the top and back of the head, and hair follicles usually have 1 or 2 hairs. This information can help in designing hair restoration procedures.

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

The guideline recommends mental health involvement in diagnosing gender identity disorder and outlines hormone and surgical treatment protocols, emphasizing safety, informed consent, and long-term monitoring.

Future hair cosmetics will be safer and more effective.

Different ethnic hair traits must be considered for successful hair restoration surgery to achieve natural-looking results.

The hair follicle dermal sheath is essential for hair shedding and needs to communicate with the outer root sheath for normal hair growth cycles.

Looking older on the outside might be linked to aging faster on the inside and can be affected by lifestyle choices and health risks.

OCT is a reliable, noninvasive way to measure hair thickness.

MRI helps distinguish between pituitary adenomas and craniopharyngiomas, guides treatment for pediatric CNS tumors, and assesses rhinocerebral mucormycosis with a high mortality rate in transplanted patients.

Long-term estrogen therapy in postmenopausal women can improve certain health markers, hair loss is common regardless of hormone use, stopping estrogen doesn't increase breast cancer risk, smoking does, and a balanced BMI is linked to lower mortality.

Optical Coherence Tomography has potential in diagnosing hair loss and monitoring blood clotting, and could be improved for deeper tissue observation and better hair loss understanding.

Eyelash curvature is linked to the thickness of the cuticle layer at the root.

The model helps understand how wool fiber structure affects its strength and flexibility.

Exposure to too much androgen before birth might cause polycystic ovary syndrome later in life.