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Mild exercise reduces pain in older rats through a brain chemical, while intense exercise reduces pain in all rats through a different pain-blocking process.

Low-molecular weight hyaluronate can make damaged hair stronger.

Keratin hydrogels from human hair show promise for tissue engineering and regenerative medicine.

New wig coating technique makes them more durable, UV resistant, and less static.

Recombinant keratin K31 makes damaged hair thicker, stronger, and straighter.

The GNP crosslinked scaffold with antibacterial coating is effective for rapid wound healing and infection prevention.

Chronic scalp pain in trichodynia involves both body-wide and localized increased pain sensitivity.

Argan oil makes hair care products spread better and improves their texture.

Some plant extracts may treat livestock diseases, certain animal treatments are safe and effective, but more research on drug safety and resistance is needed.

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

AFM can diagnose hair disorders by revealing detailed hair surface changes.

Hair fibers break by cuticle cell slipping, shape changing, cuticle fraying, and surface cracking when stretched under specific conditions.

The 5050 MHA42MCS45 hydrogel blend is suitable for repairing load-bearing soft tissues.

The study concluded that the developed models are effective for studying hair growth mechanisms and testing new treatments.

Curly hair is mechanically different from straight hair and may need new testing methods.

Accurate diagnosis of SLE requires extensive testing due to its complex symptoms.

Keratin films from human hair can potentially replace human nail plates for drug testing.

Keratin-based particles safely improve hair strength, smoothness, and heat protection.

Black hair is fragile due to hair care practices, not structural differences.

A new method using 1,4-n-butylene dimaleate effectively repairs and strengthens damaged hair.

Scalp flaps are stiffer than skin from other body areas, which helps in planning reconstructive and cosmetic head surgeries.

Hair's resistance to wear varies by ethnicity and treatment, with less wear indicating stronger hair.

Keratin's mechanical properties are influenced by hydrogen bonds and secondary structure, and can be improved with the SPD-2 peptide.

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

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

Human hair shows promise for non-invasive medical testing, but more research is needed to standardize its use.

New methods to classify curly hair types were developed based on shape and strength.

Higher temperatures improve rabbit hair strength up to 50°C, but moisture weakens it.

The document concludes that developing generic topical drugs requires ensuring they match the original in quality, composition, and structure, and often involves complex testing and regulatory steps.

The Multi-Organ-Chip improves the growth and quality of skin and hair in the lab, potentially replacing animal testing.