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Male and female mice have different skin thickness, and hormones affect their skin and hair growth differently.

Testosterone's health effects are complex and not definitively understood.

Testosterone works in different ways, including direct interaction with its receptor, conversion to other hormones for specific effects on genitalia, hair, bones, and muscle, and changes in body fat and sexual function when low.

Dihydrotestosterone makes arteries stiffer in female mice by reducing estrogen receptor expression.

5alpha-reductase 2 is crucial for proper male brain development and sexual differentiation.

Activating androgen receptors in muscle can increase muscle mass and reduce fat.

The body's change of testosterone into DHT is not necessary for testosterone's muscle and sexual effects.

Using anabolic-androgenic steroids can harm men's reproductive health and increase the risk of heart problems and death.

Androgens reduce THY1 in skin cells, leading to less fat, more fibrosis, and worse healing in males.

Androgens, male hormones, affect physical and mental functions, with a decrease leading to health issues like muscle loss, bone disease, and depression, and more research is needed on long-term effects and treatments.

Cyproterone acetate is a safe treatment that causes mild feminizing effects in adolescent trans-girls.

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

Lack or blocking of SRD5a, a key component in hormone creation, can lead to conditions like pseudohermaphrodism and affect hair growth, bone mass, muscle strength, and reproductive health. More research is needed on its regulation from fertilization to adulthood.

An ovarian tumor caused a woman's male-like symptoms, which improved after surgery.

GTx-024 and Danazol affect the uterus like DHT, while GTx-007 has little impact.

Higher free testosterone levels can increase bone density and decrease body fat but may raise the risk of prostate cancer, hair loss, and benign prostate enlargement.

Cyproterone slightly inhibited hair growth in castrated mice, while tamoxifen significantly inhibited hair growth in castrated mice but not in normal mice.

A 13-year-old girl's masculine symptoms improved after surgery for a rare adrenal tumor that produced male hormones.

Testosterone significantly affects urination differences between male and female mice.

Androgens and estrogens are crucial for insulin secretion in males.

Male children's genital development issues can be caused by genetic mutations or environmental factors affecting hormone action.

Increased free testosterone can lead to stronger bones and less body fat but also higher risks of prostate cancer, hair loss, spine issues, and high blood pressure.

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

Men using steroids or finasteride to look more attractive may harm their fertility and sexual function, creating a paradox where they seem fit but may be less able to reproduce.

Estrogen treatments can cause unwanted effects in men and should be used cautiously.

Genetics may play a significant role in gender dysphoria.

Muscles can make their own androgens, which may help muscle growth.

Testosterone reduces heart damage and inflammation after injury.