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Young adults have about 230,000 tactile nerve fibers, decreasing 5-8% per decade with age.

Pregnancy can cause skin darkening, varicose veins, more sweating, hair growth, hair loss after birth, nail changes, and gum inflammation.

Male hormones affect COVID-19 severity and certain drugs targeting these hormones could help reduce the risk.

Different types of stem cells exist within individual skin layers, and they can adapt to damage, transplantation, or tumor growth. These cells are regulated by their environment and genetic factors. Tumor growth is driven by expanding, genetically altered cells, not long-lived mutant stem cells. There's evidence of cancer stem cells in skin tumors. Other cells, bacteria, and genetic factors help maintain balance and contribute to disease progression. A method for growing mini organs from single cells has been developed.

Dexamethasone speeds up hair loss in mice, while cyclosporin A slows it down.

The AUTS2 gene is linked to neurological disorders and may affect human brain development and cognition.

Smoking harms the skin, causing early aging and increasing cancer risk, but stopping smoking can improve skin health.

Trichoscopy is a useful, non-invasive way to diagnose different types of hair loss.

The document concludes that accurate diagnosis of different types of hair loss requires careful examination of hair and scalp tissue, considering both clinical and microscopic features.

Researchers developed a new model for more realistic computer graphics of hair by considering how light scatters on hair fibers.

Human beard hair medulla contains a unique and complex mix of keratins not found in other human tissues.

Mutant mice help researchers understand hair growth and related genetic factors.

The study found that diseases can be grouped by symptoms and that the accuracy of predicting disease-related genes varies with the data source.

Circadian rhythms are crucial for stem cell function and tissue repair, and understanding them may improve aging and regeneration treatments.

The tumor suppressor gene FLCN affects mitochondrial function and energy use in cells.

SHISA6 helps maintain certain stem cells in mouse testes by blocking signals that would otherwise cause them to differentiate.

Pregnancy causes skin changes like darkening, hair thickening, nail changes, and increased risk of skin growths, most of which usually resolve after birth.

TrichoScan is a reliable method for measuring hair growth and is useful for assessing hair loss treatments.

Natural 5AR inhibitors effectively improve mild to moderate hair loss in men.

The document concludes that good cosmetic outcomes in hair transplantation depend on the surgeon's artistic skill and careful planning.

Melanocyte development from neural crest cells is complex and influenced by many factors, and better understanding could help treat skin disorders.

Certain immune system proteins are important for skin healing but can cause problems if there are too many of them.

Oxidative stress is a key factor in the development of Polycystic Ovary Syndrome, and weight management can improve symptoms.

The gene Foxq1, controlled by Hoxc13, is crucial for hair follicle differentiation.

Children with scalp fungal infections need proper diagnosis and treatment, usually with antifungal medications, and newer drugs may offer quicker recovery.

Plant extracts effectively reduce hair loss and increase growth, offering a safe alternative treatment.

Folliculitis is an inflammation of hair follicles that requires proper diagnosis and treatment based on the specific cause.

Lithium therapy may cause skin problems like hidradenitis suppurativa and other side effects, which can improve after stopping the medication.

Pregnancy often causes skin changes like darkening, stretch marks, and hair growth, which may improve after childbirth.