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Human hair varies widely and should be classified by curl type rather than race.

Hair loss surgeries like grafts, scalp reductions, and flap rotations can be effective for black men with proper technique adjustments.

Hair transplantation is a viable treatment for some types of female hair loss, with careful donor assessment and attention to psychological factors.

Hair splitting and nail detachment are linked conditions.

Small amounts of DNA can be found in the hair shaft, especially near the root, but it decreases with hair treatments and washing.

Ruby laser hair removal effectively reduces hair density and is preferred by most patients.

New methods may change hair color and shape from the root, revolutionizing hair styling.

Using trait prevalence priors in genetic prediction models for appearance traits is currently impractical due to limited knowledge and potential accuracy issues.

DNA can predict physical traits like eye and hair color accurately, especially in Europeans, but predicting other traits and in diverse populations needs more research.

Gamma-ray exposure can cause long-lasting damage to hair follicles, affecting hair structure and color.

The immune system can cause permanent skin and hair whitening by attacking pigment cells.

Valproic acid can cause a skin condition called leukocytoclastic vasculitis, which usually gets better after stopping the drug.

Tissue expansion is a useful method for reconstructive surgery with good results and room for further enhancement.

The patient had a severe itchy rash and hair loss in the armpits.

Crossbreeding improves goat fiber quality, and specific genes affect hair traits and color.

Hair dye chemicals can cause serious health problems, including kidney damage.

Dermatologists should use hair relaxers carefully to avoid hair and scalp damage, following specific guidelines for application and maintenance.

Mexican hairless dogs can help test new skin treatments.

The device accurately estimates natural hair color at the roots in real time.

Gamma rays did not change hair follicle density but increased white and hypopigmented hairs in mice.

Hair care products clean, protect, style, color, and change hair structure.

Hair is a complex organ, and understanding its detailed structure and growth phases is crucial for analyzing substances within it.

Surfactants in shampoos and conditioners remove some but not all lipids from hair, and more research is needed to understand their full impact.

Self-perceived facial aging is linked to skin pigmentation, immune system, hair loss in men, and genes related to the skin's structure.

Changing habits can make you look younger and improve your overall health.

Genetics, stress, and health issues can cause early hair greying, which affects self-esteem, and there's no cure, only hair dye.

Humans can accurately guess age from faces, with women being slightly better at it, and age perception is linked to evolutionary factors.

Taking enzyme food and collagen together improves scalp hair health in middle-aged women more than taking them separately.

The editor suggests removing "race" and "ethnicity" from dermatology and creating tools to objectively assess skin color and hair texture.

The hot-wire hair removal device is no better than shaving.