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Aging alone barely affects the number of hair follicles, meaning hair loss is minimal without other conditions like androgenetic alopecia.

Neonate scalp hair is thinner, lacks a medulla, and has smaller follicles compared to adult hair.

Caffeine applied to the scalp can protect hair follicles from UV damage.

Dandruff is linked to increased T cells and weakened immune protection in hair follicles.

Caffeine can protect scalp hair follicles from damage caused by UV radiation.

Trichoriboside treatment helps maintain scalp hair by increasing cAMP levels in hair follicles of men with hair loss.

The research provides specific measurements for hair follicles that can improve hair transplant and regeneration techniques.

Alopecia causes smaller hair follicles and affects growth-related structures.

Hair follicles are smaller in people with androgenetic alopecia compared to those with normal scalps.

Using enzymes to break down scalp hair follicles gets more stem cells for skin and hair growth than the old method.

Heat shock protein 27 is more present in the active growth phase of human scalp hair follicles.

Testosterone affects hair follicles differently across body sites, with beard hair follicles showing more activity of a specific enzyme and presence of androgen receptors compared to scalp hair.

The document concludes that while some hair and scalp disorders can be treated, hair loss from destroyed follicles is permanent, and damaged hair can only regrow naturally.

Cells from balding scalps have more androgen receptors than cells from non-balding scalps.

Human hair growth is influenced by androgen hormones, and red deer mane follicles have similar hormone receptors.

Hair loss reduces hair thickness and coverage, but drug treatments mainly revive dormant hairs rather than reverse thinning; patients often undervalue their hair loss severity.

Human scalp hair follicles grow well in Williams E medium, which may help with hair transplants.

Transplanted hair follicles can resist hair loss from an autoimmune condition better than natural hair.

Hair transplant combining scalp and beard hair with PRP was successful for scarring alopecia.

A boy had unusual synchronized hair growth with short active growth phases, not fitting known hair disorders.

CE-PTG is a better method for analyzing hair growth in androgenetic alopecia.

Using body hair with scalp hair for hair transplants improves density and coverage in severe hair loss cases.

Minoxidil is less effective on eyebrows and eyelashes than scalp hair because these areas have lower enzyme activity needed to activate the drug.

Melatonin improved secondary hair growth in goats but didn't affect primary hair density or litter size.

Artemis protein may help control hair growth and health by influencing cell processes.

Central lipohypertrophy in HIV-infected women may lead to shorter eyelashes.

Androgens can both stimulate and cause hair loss, and understanding their effects is key to treating hair disorders.

Hair follicles on the scalp interact with and respond to the nervous system, influencing their own behavior and growth.

The study found new details about human hair growth and suggests that preventing a specific biological pathway could potentially treat hair graying.

Using scalp stem cells can improve hair transplants.