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Men with low or no sperm count have lower salivary testosterone levels, and saliva testing can measure their testosterone well.

Pattern baldness is likely caused by a dominant gene influenced by testosterone levels, making it more common in men.

Hirsutism is more linked to high androgen levels than acne or hair loss, and a mix of hormonal tests is best for diagnosis; certain treatments can reduce symptoms.

Men with hair loss have lower SHBG and higher saliva testosterone levels, suggesting increased androgen activity.

Hair analysis can somewhat track past testosterone levels but is influenced by factors like hair washing, growth rate, sex, and hair color.

Segmental hair analysis can track testosterone over time but needs adjustments for sex, hair color, and washing frequency.

Toxoplasma gondii infection may increase testosterone levels in males.

Girls had higher stress hormone levels during school due to social and emotional issues, while boys had higher overall hormone levels with slight changes when school started.

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.

Hormone levels in hair change during pregnancy, with progesterone increasing significantly compared to non-pregnant women.

Testosterone significantly affects sexual desire in both men and women, but its impact on women is more complex and influenced by psychological factors.

Testosterone treatment for older men can have short-term benefits, but long-term risks are unclear, requiring careful evaluation and monitoring.

The conclusion is that managing androgen excess requires long-term treatment, including hormonal contraceptives and androgen blockers, with follow-up after six months.

Testosterone replacement can help women with low libido and mood, but they need to have enough estrogen first to avoid side effects.

Cyproterone acetate is effective for treating hirsutism and acne but less so for hair loss, with side effects similar to birth control pills.

Genetic and environmental factors, like smoking and exercise, affect male hair loss.

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

Higher androgen levels do not cause baldness in men.

Men with low testosterone should be carefully evaluated and monitored before and during treatment.

The document concludes that using LC-MS/MS for measuring androgens is more accurate than older methods, but it needs careful validation and standardized references to be most effective.

Both genetic and lifestyle factors significantly affect female hair loss.

Testosterone therapy helps boys with hormone deficiencies develop normal male characteristics and grow properly.

Mice lacking steroid 5α-reductase 2 show less aggression and better impulse control.

Some supplements and hormones can increase hair loss by raising DHT levels.

Early balding in young Indian men may indicate a higher risk of metabolic syndrome and potential heart disease.

Understanding how DHT works is important for diagnosing and treating hormone-related disorders.

Women with hyperandrogenic amenorrhea have similar bone density to healthy women but lower than androgenized women without amenorrhea, and high DHEAS levels might affect bone density.

Topical spironolactone cream doesn't cause hormone-related side effects in the body.

Masculine facial features may not reliably indicate heritable health, and more research is needed.

Excessive hair growth in women often has no known cause and is not linked to race or other hormonal symptoms.