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Acidic sandy clay damages archaeological hair the most, while dry conditions preserve but make it brittle; silicone oil can help keep the hair flexible.

Human hair is unique and important for understanding human evolution and identity.

The research found that people's hair proteins vary, especially by ethnicity and body part, which could help identify individuals in forensic science.

Human hair has electromagnetic properties.

Trichorrhexis nodosa causes hair to break easily, often affecting young to middle-aged black women.

The normal range for the hair pull test is 2 hairs or fewer, and washing or brushing hair before the test does not affect the results.

Pigtail hair is a sign of new hair growth and should be recognized in hair loss conditions like acute telogen effluvium.

Plucked hair can effectively monitor drug effects in cancer treatment.

Hyperbranched polymer dots significantly boost hair regrowth better than minoxidil.

The document concludes that proper diagnosis and treatment of hair shaft disorders require understanding their unique causes and avoiding hair-damaging practices.

Hedgehog signaling controls hair follicle development and can affect skin cancer growth.

Both gene and non-gene areas of DNA evolved to make some mammals hairless.

Curly hair in certain scalp areas can be an early sign of hair loss.

Spiny keratoderma may be ectopic hair formation on palms and soles.

The conclusion is that the variation in hair thinness in patients is mostly due to the amount of underdeveloped hairs, and treatments that thicken fine hairs might work for those with mild to severe conditions.

Hormones and neuropeptides affect hair growth, with androgens having opposite effects on beard and scalp hair.

Hair medullary cells in mammals vary in complexity, with humans having more structured cells similar to inner root sheath cells.

A new painless method to collect hair follicles helps study DNA damage and aging.

A new method quickly extracts and identifies proteins from hair and other keratin sources.

A new protein, mK6irs, is found in specific hair layers and may help understand hair growth and diseases.

Hairlessness in mammals is caused by combined changes in genes and regulatory regions.

Hair follicles grow hair and release it through the skin.

Recognizing bamboo hair helps diagnose Netherton’s syndrome.

Scientists successfully grew mini hair follicles using human skin cells, which could help treat baldness.

HAP stem cells can repair nerves and spinal cords by becoming Schwann cells.

Grafted human scalp samples on mice can produce human hair, useful for studying hair genetics.

The method improved hair analysis for better forensic identification.