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Finasteride may cause mental and sexual side effects, with hand preference and sexual orientation possibly affecting severity.

Finasteride worsens erectile dysfunction and lowers testosterone in men with enlarged prostates, unlike tamsulosin.

Finasteride effectively treats male hair loss, with oral and topical forms improving hair growth, but oral use may have side effects.

The document recommends using both clinical evaluation and various measurement methods to assess skin greasiness, considering factors like temperature and hormones.

Androgens in female meerkats influence aggression and dominance, affecting social dynamics and offspring behavior.

Mutations in the androgen receptor gene cause Androgen Insensitivity Syndrome, affecting sexual development.

Changing neuroactive steroid levels early in life can affect how adult rats respond to alcohol's stimulating effects.

Blocking androgen activity in newborn rats affects body weight and appetite-related hormones differently in males and females.

Mouse genital development depends on male or female hormones for specific features.

A vaccine may prevent benign prostatic hyperplasia (BPH).

Enzymes called 5α-reductases have many body functions and need more research to safely use inhibitors.

Men who start puberty later may have lower sperm quality and different hormone levels in adulthood.

Hormone treatment for transsexual individuals is effective but carries risks like thromboembolic events and mood changes, with most side effects being minor and reversible.

Male mice with FGF5 mutations grow longer hair than females.

The document concludes that personalized hormonal treatments are important for transgender individuals and more research is needed for non-binary treatments.

Men's skincare products with essential oils can improve skin health and may increase male interest in cosmetics.

Lipocalin-Type Prostaglandin D2 Synthase (L-PGDS) is a protein that plays many roles in the body, including sleep regulation, pain management, food intake, and protection against harmful substances. It also affects fat metabolism, glucose intolerance, cell maturation, and is involved in various diseases like diabetes, cancer, and arthritis. It can influence sex organ development and embryonic cell differentiation, and its levels can be used as a diagnostic marker for certain conditions.

Male hormones, or androgens, affect women's health in areas like mood and bone density, and hormone replacement therapy using antiandrogenic progestogens can improve mood disorders and alertness in menopausal women.

Male sperm disorders significantly contribute to infertility.

Male hormones and their receptors play a key role in hair loss and skin health, with potential new treatments being explored.

Male hormones cause different growth in identical human hair follicles due to their unique epigenetic characteristics.

A new genetic mutation causes severe Leydig cell hypoplasia, affecting sexual development.

Fenugreek seed extract boosts testosterone and improves male reproductive health without heart side effects.

Gender identity can be more diverse than just male or female.

Women with type 1 diabetes often have polycystic ovary syndrome and excess male hormones, which are frequently undiagnosed.

The document concludes that understanding health requires considering evolutionary perspectives on reproductive fitness, and recognizing the complexity of factors like diet, testosterone, and sexual orientation.

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.

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.

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

The April 2014 issue of "Fertility and Sterility" discussed various reproductive health topics, including hormone therapy benefits, sperm and genetic factors in male infertility, and the link between PCOS and diabetes.