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Androgens like testosterone are important hormones for both men and women, made differently in each sex and affecting the body by regulating genes and quick interactions with cell components.

Female pattern hair loss involves hormonal factors, genetics, and may be linked to low ferritin levels.

DHT's role in hair loss is important, but measuring its level for diagnosis is questionable.

Existing drug dexamethasone may lower death risk in severe COVID-19 cases; more research needed for other drugs.

Scalp cooling is the most effective FDA-approved method to prevent chemotherapy-induced hair loss, but more research is needed for other treatments.

Hair growth slows and shedding increases after childbirth, but most women don't experience excessive hair loss.

Sex hormone treatments can increase muscle mass in older adults but have inconsistent effects on muscle function and may carry cardiovascular risks.

Finasteride reduces alcohol withdrawal severity in male mice but increases it in female mice.

Red ginseng oil and its components help promote hair regrowth and could treat hair loss.

Measuring reproductive hormones in brown bear hair could help identify their sex and reproductive state, but better collection methods or lab techniques are needed.

Finasteride treatment changes brain steroid levels and receptors, affecting brain function even after stopping treatment.

Latanoprost, a glaucoma drug, showed potential for promoting hair growth in bald monkeys, especially at higher doses.

Dihydrotestosterone (DHT) stops hair growth in mice by lowering a growth factor important for hair.

Premature ovarian insufficiency (POI) can harm women's sexual health, and they may benefit from hormone therapy and counseling.

Hormone therapy affects hair growth in transgender individuals, with testosterone potentially causing hair loss in trans men and estrogen reducing facial/body hair in trans women; treatment options vary.

Rice bran extract can potentially treat hair loss by promoting hair growth and increasing the number of hair follicles.

Using finasteride or dutasteride does not increase the risk of male breast cancer.

Early onset hair loss linked to genetics and androgen levels.

Early adrenal gland maturation in young children can be normal, but other serious conditions should be ruled out first.

Low testosterone and 5α-reductase inhibitors can harm men's metabolic and sexual health; testosterone therapy may help, but discussing 5α-RIs' side effects is important.

Hormonal treatments are effective as a second-line option for moderate-to-severe acne in females, but should be used with caution due to health risks.

Men with testicular cancer were less likely to experience baldness and severe acne.

5-alpha-reductase inhibitors may cause a low incidence of erectile dysfunction that decreases over time.

Testosterone therapy may slightly improve sexual function in postmenopausal women, but its long-term safety is unknown.

Steroidogenic isoenzymes may help improve treatments for common hair loss.

Certain HSD3B1 gene types are linked to worse prostate cancer outcomes and affect treatment response and other health conditions.

The conclusion is that future hair loss treatments should target the root causes of hair thinning, not just promote hair growth.

The model suggests that scalp tension could lead to hair loss, with factors like blood vessel hardening, enlarged oil glands, and poor microcirculation also playing a role. It also hints at a possible link between skull shape and baldness pattern.

Parietal scalp area has lower hair density and smaller hair diameter in women with hair loss.

Acanthosis nigricans is a skin condition that may indicate a higher risk for insulin resistance and type 2 diabetes, and more research is needed to understand and treat it.