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The document explains the diagnosis and characteristics of woolly hair nevus and alopecia neoplastica.

Photobiomodulation therapy significantly increases hair density and growth for androgenic alopecia, but more research is needed to confirm safety.

The report concludes that PCOS is mainly a condition of excess male hormones and its definition may change as new information is discovered.

Testosterone is important for men's sexual function, may help some women's sexual desire, while other hormones and neurotransmitters also play complex roles in sexual behavior.

DNA profiling in forensics has improved, but predicting physical traits and ancestry from DNA has limitations and requires ethical consideration.

Experts recommend using evidence-based methods to diagnose and treat hirsutism, focusing on symptoms and underlying causes.

Myo-inositol supplements may improve insulin sensitivity and help with conditions like PCOS and gestational diabetes, but more research is needed.

Auxin and ethylene hormones both work together and against each other to control plant growth.

Adult stem cells from rat whisker follicles can regenerate hair follicles and sebaceous glands.

Chemicals and body size might change when puberty starts and progresses, but more research is needed to confirm this.

The document concludes that the fast-growing direct-to-consumer genetic testing market lacks sufficient regulation, posing risks to consumers due to questionable test quality and accuracy.

Chitin and chitosan are useful in cosmetics for oral care, haircare, and skincare, including UV protection and strength improvement.

Some patients taking finasteride or dutasteride may have ongoing sexual problems and depression even after stopping the medication.

Guidelines suggest various treatments for alopecia areata, but leaving it untreated is also an option as 80% cases may recover on their own.

Different types of skin cells play specific roles in development, healing, and cancer.

The skin is a complex barrier for drug penetration, but understanding its structure and interactions can improve drug delivery methods.

A gene called APCDD1, which controls hair growth, is found to be faulty in a type of hair loss called hereditary hypotrichosis simplex.

Hair follicle development and microbes help regulatory T cells gather in newborn skin.

Hair follicle stem cells use specific chromatin changes to control their growth and differentiation.

Essential oils in cosmetics can offer benefits but may cause allergies and should be used carefully.

Zinc is effective for treating various skin conditions, including warts and acne.

Male hormones, particularly DHT, are linked to male pattern hair loss, and treatments like finasteride can help, but they don't work for postmenopausal women's hair loss, which may have different causes.

Latanoprost can make eyelashes longer, thicker, and darker.

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

Estrogen replacement can improve skin health in menopausal women but doesn't reverse sun damage or prevent hair loss.

Estrogen loss during menopause worsens skin health, but hormone replacement therapy may improve it, though more research is needed.

Some vitamins and minerals like vitamin D and iron can help with certain types of hair loss, but more research is needed for others.

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

Exposure to finasteride in the womb caused lasting reproductive issues in male rats.

The conclusion is that the increasing use of drugs for lifestyle reasons is a complex issue influenced by corporate profit, consumer behavior, and the medicalization of everyday life, with potential negative effects on personal well-being.