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Gender affects hair and scalp characteristics, with differences in hormone responses, graying patterns, and trace metals.

Androgenic alopecia is mainly caused by DHT, and new treatments focus on hair regeneration and aging factors.

Topical finasteride might be a good alternative for hair loss treatment with fewer side effects, but more research is needed.

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

Some common medications can harm male fertility, but many effects can be reversed.

Obesity may worsen hair loss in men and increase hirsutism in overweight or obese individuals, with weight loss recommended for treatment.

Testosterone is made by Leydig cells, is active when not bound to proteins, and works by binding to receptors in muscles and other tissues.

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

Hormones like estrogen, testosterone, progesterone, and prolactin play complex roles in female sexual function, with testosterone potentially improving sexual desire, arousal, and satisfaction. However, more research is needed to establish safe and effective hormone treatments for female sexual dysfunction.

Many North African women with acne also have PCOS, showing more severe symptoms and higher testosterone levels.

Baldness caused by male hormones in female-to-male transsexuals doesn't increase the risk of heart disease.

High levels of cortisol in hair show long-term stress which can lower fertility in animals.

Saw palmetto supplements may reduce prostate cancer cell growth without being toxic.

Athletes use steroids to enhance performance despite health risks and legal issues, and education on their dangers is needed.

Certain pesticides and fungicides can interfere with male hormone functions, potentially causing reproductive issues in male rats.

Cyproterone acetate is a safe treatment that causes modest feminization in transgender female adolescents, and works better with added estrogens.

5α-reductase inhibitors don't stop bladder cancer from developing or getting worse.

Hair loss in Saudi Arabia causes a low psychosocial impact, with less effect on those without a family history of hair loss.

The wild garlic plant, Allium macrostemon Bunge, can promote hair growth and could potentially be used to treat hair loss.

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

DHT is a strong androgen that may pose less risk to the prostate compared to testosterone.

Metformin lowers prolactin in women without PCOS but not in those with PCOS, where it reduces other hormones instead.

Hormonal imbalances can cause hair loss, and understanding them can help develop better treatments.

Many transgender men on testosterone therapy experience hair loss.

The document explains how the male reproductive system works, its role in making testosterone, and how conditions like obesity can disrupt it, leading to low testosterone and fertility issues.

New male hormonal contraceptives show promise but need more research on long-term effects and funding for larger trials.

A Saudi individual initially identified as a girl had a genetic disorder affecting gender development.

Gender-affirming therapy can cause skin issues like acne and hair loss in transgender adolescents, and more research is needed on its dermatological effects.

Saw palmetto extracts might help treat male hair loss and need more research.

The therapies improved ejaculation disorders and sexual function in middle-aged men.