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Infertile men are more likely to produce sperm with abnormal chromosome numbers, which can affect pregnancy success and embryo health.

Activated carbon fibers from Metaplexis japonica seed hair are highly effective for removing the dye methylene blue from water.

Hair transplants can lead to hair loss from lichen planopilaris, and patients should be tested and wait two years before the procedure.

Removing external lipids from hair reduces moisture and increases strength, while removing internal lipids decreases water permeability.

Hair dyes can change hair color temporarily or permanently but may cause side effects like skin reactions and hair damage.

Bleaching and combing damage hair's surface and mechanical properties.

Transverse scalp sections are better for diagnosing non-scarring hair loss, while vertical sections are better for a specific scarring hair loss called lichen planopilaris.

Hair's strength and flexibility come from its protein structure and molecular interactions.

Using polyethylenimine-DNA to deliver the hTERT gene can stimulate hair growth and may be useful in treating hair loss, but there could be potential cancer risks.

Certain genetic markers linked to reproductive potential were identified by their impact on a protein's ability to bind to genes.

The 3D structure of a key hair protein was modeled, revealing specific helical structures and stabilization features.

Heat damages hair, with Asian hair losing more protein than Caucasian hair.

Different tests are used to see how hair care products affect hair, and choosing the right test is important for accurate results.

Different types of scarring alopecia may be stages of one disease, and accurate diagnosis is crucial to prevent permanent hair loss.

Many alopecia patients have undetected thyroid abnormalities that can be found through physical exams.

Explosions don't stop hair proteins from being used to identify people.

Wool and hair fibers absorb moisture similarly due to their keratin structure, with the amount of non-crystalline areas affecting the moisture uptake.

Hair absorbs molecules differently based on their size, charge, and love for water, and less at higher pH; this can help make better hair products.

African hair has the most lipids, while Caucasian hair is more hydrated and stronger.

The document concludes that cosmetics need biocompatible, eco-friendly ingredients due to aging populations and demand for effective products.

Researchers created small amber particles for use in bioactive and biocompatible fibers that could help with skin and hair restoration and are safe for infant clothing.

Maize hybrids show better early growth due to complex gene interactions from their parent strains.

UVB radiation changes the chemical makeup and dries out human hair but doesn't alter its appearance or texture.

Shampoo B, which uses water-soluble silicone, is better at detangling hair in wet conditions due to its two-layer conditioning film.

Heat transfer in hair is slower in groups of hair, increasing the risk of damage from high-temperature styling tools.

Lower pH straighteners change hair more but weaken it.

Hair damage increases significantly with higher temperatures and longer heating times.

A small molecule can strengthen fine hair, making it more resistant and natural-feeling.

Scalp biopsy helps tell apart permanent and temporary hair loss types and guides treatment.

Climate-related nutritional stress may cause hair loss in juvenile male Guadalupe fur seals.