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A specific DNA sequence caused hair loss in male mice by activating immune cells and increasing a certain immune signal.

Minoxidil solution applied on skin can effectively promote hair growth and increase hair thickness in male mice.

Loop diuretics may double bone loss in elderly men, finasteride lowers prostate cancer risk but may increase high-grade tumors, abarelix reduces testosterone quickly, and transdermal testosterone offers minimal sexual benefit for women.

Hormone treatments in transsexual individuals reduce hair growth and oil production in male-to-females and increase them in female-to-males.

Male pattern baldness may be caused by scalp pressure on hair follicles, which increases with age and leads to a cycle of hair loss. This process is not directly determined by genes.

Men with early hair loss have similar hormone levels to women with PCOS, possibly increasing risk of obesity and heart issues.

Flutamide and finasteride reduced sex hormones in pregnant hyenas, but increased them in males.

Postmenopausal hyperandrogenism, a condition with symptoms like increased hair growth and acne, is usually caused by PCOS but can also be due to other factors. It's diagnosed by checking testosterone levels and treated either by removing the adrenal tumor or through antiandrogen therapy.

During puberty, hormone levels rise, with early increases in some steroids and most menstrual cycles becoming regular by six years after menarche.

Prostate cells have proteins that bind to specific hormones, which can increase protein production when activated by these hormones.

Cyproterone acetate treatment is safe and causes mild feminization, which increases with added estrogen.

Women with female pattern hair loss have higher levels of certain androgens, suggesting increased androgen exposure to hair follicles.

Male rats grow hair faster than females, and certain hormones can slow or slightly increase hair growth, but not significantly beyond natural rates.

Sex hormones may affect COVID-19 severity, with estrogen possibly reducing risk and testosterone potentially increasing it.

Women with PCOS have higher PSA levels, which are linked to increased male hormone levels and hirsutism.

Testosterone therapy in transgender men can lead to hair loss, with the risk increasing over time and influenced by family history.

Higher testosterone and DHT levels are not linked to urinary symptoms in men.

Testosterone affects vascular cells directly without converting to estradiol.

Beard cells, unlike scalp cells, produce growth factors in response to testosterone, which may explain differences in hair growth.

Testosterone can build muscle and bone without enlarging the prostate when a specific enzyme is blocked.

Finasteride doesn't affect oral testosterone undecanoate, and high DHT levels may cause acne, prostate issues, and hair loss.

Testosterone changes how certain channels work in male rat reproductive tracts, affecting fertility-related fluid balance.

Testosterone changes important cell communication proteins in pregnant rats' uteruses, which might affect pregnancy success.

Testosterone can cause acne and male-pattern baldness, affects hair growth in men and women, and makes male skin more sensitive.

Gender-affirming hormone therapy improves physical performance in trans men to the level of cisgender men, while in trans women, it increases fat mass and decreases muscle mass, with no advantage in physical performance after 2 years.

Oral testosterone therapy raises heart risk more than other methods.

Testosterone treatment effectively causes male physical development in transgender male adolescents but may lead to side effects like acne, higher BMI and blood pressure, lower good cholesterol, and decreased bone density.

Removing a testosterone-producing tumor cured a woman's sleep apnea and other symptoms.

Testosterone's effects on COVID-19 are unclear and need more research.

Leydig cells can cause testosterone-secreting adrenal tumors in women.