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Green tea may help with skin health and protect against UV damage, but more research is needed to confirm its safety and effectiveness.

Removing part of the vitamin D receptor stops vitamin D from working properly.

Licorice has many health benefits but more research is needed to fully understand them.

Amenorrhea, or the absence of periods, should be evaluated by age 15 or within five years of early breast development, and is most commonly caused by conditions like polycystic ovary syndrome and hypothalamic amenorrhea.

Amenorrhea is when a woman doesn't have periods, with primary amenorrhea starting by age 15 or within five years of breast development, and secondary amenorrhea when periods stop for three months. It affects 3-4% of women not pregnant, breastfeeding, or in menopause, mainly due to polycystic ovary syndrome, hypothalamic amenorrhea, hyperprolactinemia, and ovarian failure.

High levels of prolactin in the blood can be linked to widespread hair loss.

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.

People with hair loss may have different levels of certain hormones due to changes in hormone processing.

Prolactin and TGF-β receptor blockers might help treat hair loss.

Pregnancy can cause skin changes and affect existing skin conditions, with limited treatment options due to the need for fetal safety.

The document concludes that understanding hair follicle biology can lead to better hair loss treatments.

Scientists made working salivary glands in mice using bioengineered cells, which could help treat dry mouth.

Estrogens significantly influence hair growth by interacting with receptors in hair follicles and may help regulate the hair growth cycle.

Finasteride treats enlarged prostate, shrinks it, improves urination, but may cause sexual dysfunction and isn't for women or children.

The conclusion is that recognizing hair growth cycles can improve the precision of dietary and health assessments from hair analysis.

TRH stimulates human hair growth and extends the hair growth phase.

Human hair follicles produce and respond to erythropoietin, helping protect against stress.

Hair growth is influenced by interactions between skin layers, growth factors, and hormones, but the exact mechanisms are not fully understood.

Hormones and their receptors, especially androgens, play a key role in hair growth and disorders like baldness.

Estrogens generally inhibit hair growth and improve skin quality, but their exact effects on hair follicles are complex and not fully understood.

Finasteride-loaded nanoparticles may help treat alopecia.

Hormones and neuroendocrine factors control hair growth and color, and more research could lead to new hair treatment options.

Male hormones affect oil-producing skin cells differently based on their body location, and the drug spironolactone can reduce these effects.

Fadrozole and Finasteride change frog sex ratios and cause intersex animals with altered gene expressions.

Hair loss in teenagers is hard to treat and lacks a cure, with some treatments available depending on the type of hair loss.

Spheroid culture in agarose dishes improves survival and nerve cell growth in thawed human fat-derived stem cells.

The document concludes that hormonal biomarkers are key for diagnosing hyperandrogenemia in women and hypogonadism in men.

Hair restoration has evolved from surgery to drugs to potential gene therapy, with improved results and ongoing research driven by high demand.

The document concludes that treating female hair loss should target reducing excess androgen and blocking its effects on hair follicles, with the best treatments being hormonal therapy, adrenal suppression, and topical minoxidil.

Hair growth is influenced by hormones and goes through different phases; androgens can both promote and inhibit hair growth depending on the body area.