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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.

Minoxidil helps prevent stress-caused hair loss in mice.

Alopecia areata is an autoimmune hair loss condition treated with corticosteroids, and histologic confirmation is the best diagnosis method.

With careful management, people with congenital adrenal hyperplasia can have successful pregnancies and become parents.

Ginsenoside Rb1 from Panax ginseng helps mink hair grow by activating certain cell signals.

The document concludes that while lab results for hair growth promotion are promising, human trials are needed and better testing methods should be developed.

Certain human skin cells marked by CD44 and ALDH are rich in stem cells capable of long-term skin renewal.

Undariopsis peterseniana extract helps hair grow by activating certain cell growth pathways and could be a new treatment for hair loss.

The skin and thymus develop similarly to protect and support immunity.

Researchers found that bulge cells from human hair can grow quickly in culture and have properties of hair follicle stem cells, which could be useful for skin treatments.

Severe baldness on the top of the head is linked to a higher chance of heart disease, especially in men under 60.

Calcium is important for stem cell function and maintenance, especially in blood and skin cells.

Combined microneedling and minoxidil improves hair growth more than minoxidil alone.

Some plants with flavonoids may help treat hair loss and promote hair growth.

Some growth factors, while important for normal body functions, can cause diseases when not regulated properly.

Minoxidil promotes hair regrowth, but more research needed for effectiveness and response factors.

DHT stops hair regrowth in mice, similar to human hair loss.

Different sPLA2 enzymes affect immunity, skin and hair health, reproduction, and may be potential targets for therapy.

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.

Some drugs can cause skin and hair color changes, often reversible when the drug is stopped.

Acne lesions start with changes in hair follicles and increase in inflammation, suggesting a cycle that could affect treatment strategies.

The gel made of minoxidil and hydroxypropyl-β-cyclodextrin improves hair growth and is good for long-term use.

High-dose radiation speeds up aging in skin stem cells.

Sargassum muticum extract and its component apo-9'-fucoxanthinone may help hair growth and treat hair loss.

The document concludes that oral finasteride and topical minoxidil are effective for genetic hair loss, while other treatments for different types of hair loss show promise but need more research.

Treating excessive hair in women requires a holistic approach, including medical, aesthetic, and emotional support.

Premature hair graying may be a sign of increased risk for heart disease, indicating biological age is more important than actual age.

CAH is a genetic disorder affecting cortisol production and causing hormonal imbalances, with treatment and diagnosis varying by form and symptoms.

Over 50% of women over 50 experience hair loss, with minoxidil being the only proven effective treatment.

The document suggests using fat grafting and laser therapy to improve the aging Asian face and hair restoration techniques tailored to Asian hair characteristics, emphasizing natural results and cultural sensitivity.