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Men who went through puberty later had lower sperm counts and altered hormone levels, possibly affecting fertility.

Hormones significantly influence hair growth, with conditions like hirsutism and patterned hair loss linked to hormone levels; more research is needed for full understanding.

A 24-month-old Nigerian girl developed early puberty with no family history, needing treatment her family couldn't afford.

As women age, they experience changes in hair density and volume, face challenges in distinguishing normal hair loss from disease, and have limited access to treatments for hair issues.

New understanding of hair loss could lead to better treatments.

Different processes create patterns in skin and things like hair and feathers.

Women with hyperandrogenism have higher androgen levels and lower SHBG, which may contribute to conditions like excessive hair growth and early puberty.

The skin acts like an endocrine organ, producing hormones that affect various body functions and skin health, and understanding this can lead to new treatments.

Higher SHBG levels are linked to less severe hair loss in women, but vitamin D levels don't seem to affect hair loss.

Melasma's causes include genetics, sun exposure, hormones, and oxidative stress, and understanding these can help create better treatments.

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

Transgender women can develop feminine traits and improve their quality of life through hormone therapy and surgery, but results vary and access to surgery can be limited.

Testosterone is important for male sexual traits, reproduction, muscle and bone health, blood production, and metabolism, and works both directly and after being changed into other hormones.

Mutations in the WNT10A gene can cause skin, hair, teeth, and other disorders, and may also affect other areas like kidney and cancer, with potential for targeted treatments.

People with Alopecia areata often have lower Vitamin D levels, which might affect the severity of their condition.

Growth factors greatly affect hair loss, with different levels seen in men, women, younger patients, and at the start of the condition.

Dihydrotestosterone (DHT) mainly affects nearby cells, doesn't significantly change prostate hormonal environment or cancer risk, and doesn't play a main role in causing hair loss or acne. More research is needed on its effects on heart health, sexual function, and bone health.

Hashimoto thyroiditis is an autoimmune disease that can lead to an underactive thyroid and is treated with medication and sometimes diet changes or surgery.

Low iron levels are linked to premature graying of hair, but vitamin D levels are not.

The model and estimator can predict drug exposure in kidney transplant patients well.

The Rotterdam Study updated findings on elderly health, focusing on heart disease, genetics, lifestyle effects, and disease understanding.

Men are more likely to get infectious skin diseases, while women are more prone to autoimmune and pigment-related skin conditions, influenced by biological and environmental factors.

The enzymes 5α-reductase and 3α/β-hydroxysteroid oxidoreductase help create brain-active substances from progesterone and testosterone, which could be used for treatment, but more research is needed to ensure their safety and effectiveness.

Changes in testosterone and estrogen receptor genes can affect how men age, influencing body fat, hair patterns, and possibly leading to skin disorders.

DNA markers can predict physical traits for forensic use, but there are ethical and technical challenges.

Some blood-thinning medications can increase the risk of bleeding, and certain factors like genetics and other health conditions affect their safety and effectiveness.

Drug metabolism affects how long a drug works, its interactions, activation, and toxicity, and is influenced by genetics, diet, illness, and other drugs.

The Asiatic lion has very low genetic diversity and unique genetic traits, highlighting the need for its conservation.

Hormonal contraceptives can help treat acne by affecting sebum production and androgen levels.

Androgens play a complex role in skin conditions like acne and hair loss in women, and normal blood levels don't always show true androgen status.