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A simple method can show hair's surface pattern.

Hairless mice have longer hair follicles and abnormal structures during the catagen phase.

Changing disulfide bonds in human hair affects its melting behavior and thermal stability.

Mature hair surfaces are formed by keratinized cells with developed layers, not just modified plasma membranes.

Hair graying may be caused by stem cell depletion from stress or melanocyte damage.

High-resolution x-ray images showed three main structures in human hair: medulla, cortex, and cuticle.

The fuzzy gene is crucial for controlling hair growth cycles.

As people get older, they have less active hair growth, but women have thicker hair than men and respond better to hair loss treatments.

Pigmented vellus and upright regrowing hairs predict hair regrowth in severe alopecia.

Human hair and skin friction vary by ethnicity, hair type, and environmental conditions.

Matted hair should not be judged as a sign of mental instability; proper diagnosis and gentle care are key.

Hair and nail disorders can cause changes in scalp pigmentation, especially with sun exposure and alopecia.

New genes linked to woolly hair have been found, which could help treat it and change hair texture.

The Shaven mutation in mice affects hair growth and causes a greasy coat due to abnormal lipid content.

The SHJH hr mice with a mutated Hr gene show signs of faster skin aging due to poor antioxidative protection.

Age-related hair loss is linked to the decline and dysfunction of hair follicle stem cells.

Hair grows from living roots, is made of dead keratin, and goes through growth, rest, and shedding stages.

Hair loss in elderly women is often caused by various factors, including hormonal changes after menopause.

Depigmented hair regrowth after alopecia areata can be permanent.

UV exposure severely damages hair, making it rough and weak.

Caucasian and Mediterranean hair is denser and varies in color and texture compared to African and Asian hair.

Advances in genetics may lead to targeted treatments for hair disorders.

As sheep age, their hair fibers and follicles grow larger and more organized, with no significant differences between males and females.

Certain enzymes react strongly with some hormones in rat skin during hair growth, mainly in sebaceous glands and hair sheaths.

Aging reduces the ability of human hair follicle cells to form new cell colonies.

Hairline recession makes Asian males look older, especially in mid-young age; proper hairline position can help them look younger.

The study confirmed that changes in hair structure in women with hair loss conditions matched what is taught in beauty college trichology courses.

Disulfide bonds affect the melting behavior of hair's crystalline structure, but hair retains some stability even after these bonds are broken.