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Testosterone and dihydrotestosterone affect hair growth, and new techniques like the folliculogram help study it, but fully understanding hair growth is still complex.

Hair problems can be caused by genetics or the environment, and treatment should focus on the cause and reducing hair damage.

Hair transplanting is a useful, often overlooked treatment for female pattern hair loss.

Grey hair and baldness may be linked to COVID-19 severity, but more analysis is needed; post-infectious hair loss is related to the severity of the disease and usually recovers within 3-6 months.

The study found that nerve signals are stronger when there are more connection points, but not necessarily denser, along the nerve's path in the spine.

Poor maternal nutrition can lead to fewer wool follicles in Chinese Merino sheep.

Older people's sweat glands are less effective at helping skin wounds heal due to weaker cell connections.

Combining cosmetic procedures with lifestyle changes improves antiaging results.

A cancer drug called nilotinib might cause hair loss due to inflammation around hair follicles.

The BASP classification is more reliable than the Norwood-Hamilton for classifying hair loss in men and women.

The new microrhizotron tool effectively observes and measures pepper plant roots non-destructively.

Organs like hair follicles can renew themselves in complex ways, adapting to different needs and environments.

Using a scalp flap for hair transplantation gives denser, faster results than older methods, but it's complex and needs careful planning.

Hirsutism in women is often due to hormone sensitivity and has significant psychological effects.

Korean hair is typically thicker with a slower growth rate, and treatments like Dutasteride are effective for male pattern hair loss without major side effects.

Syphilis can cause hair loss without other symptoms and should be considered when diagnosing unexplained hair loss.

Two siblings both had a rare case of alopecia areata at the same time.

Hair breaks differently when wet or dry and is affected by its condition and treatments like perms and bleaching.

Researchers identified genes and proteins that may influence wool thickness in sheep.

The document concludes that a thorough history, physical exam, and specific tests are crucial for diagnosing and managing hair loss effectively.

Using cetirizine on the skin and taking vitamin D can help increase hair growth in children with hair loss from ectodermal dysplasia.

Hair loss patients may have different polyamine levels in various scalp areas.

Frequent use of hair straighteners can cause hair loss similar to scarring alopecia in young Turkish women.

Afro-textured hair is more fragile and prone to certain scalp conditions, requiring careful treatment and more research for effective management.

Surgical hair restoration involves moving hair from a non-balding area to a balding area, with the transplanted hair not subject to male pattern baldness. Medications can slow hair loss and regrow some hair, but successful treatment needs careful planning, skill, and ethical responsibility due to progressive hair loss and limited donor hair.

Warming hands improves blood flow in people with systemic sclerosis.

Activating TLR5 in the gut can extend lifespan and improve health in aged mice.

Micrografting is the most effective surgical method for permanent hair restoration.

The document concludes that secondary syphilis cases are increasing and often misdiagnosed, pityriasis rubra pilaris can be distinguished from psoriasis by skin cell features, and different skin layers produce specific components during skin repair.

Peps help Arabidopsis plants grow more root hairs by affecting specific genes and calcium signaling.