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Hair loss in men and women is linked to high stress hormone levels and other hormonal imbalances, suggesting treatments should be customized to each person's hormones.

Brain hormones significantly affect hair color and could potentially be used to prevent or reverse grey hair.

The document concludes that understanding hair and feather regeneration can help develop new regenerative medicine strategies.

Ancient hair can preserve hormones, revealing health and fertility insights.

Men generally have more severe COVID-19 cases and higher death rates than women due to biological differences.

Doctors are preparing to potentially perform uterus transplants in transgender women, considering technical, hormonal, and ethical factors.

Exogenous testosterone use may be linked to developing hidradenitis suppurativa.

Hormones during puberty increase certain receptors in the brain, and this change is influenced by estrogen levels.

The method accurately measures 19 steroid hormones in human blood and urine using a small sample and is suitable for large-scale monitoring.

Ro stress hindered ginseng root growth and ginsenoside production, but increased certain hormones and affected gene regulation related to plant growth and stress responses.

Advancements in hair biology include new treatments and tools for hair growth and alopecia.

Microglia, the brain's immune cells, may contribute to Polycystic Ovary Syndrome (PCOS) by altering the female brain's structure and function, with kisspeptin neurons and GABA neurotransmitters also playing a role.

The document concludes that alopecia has significant social and psychological effects, leading to a market for hair loss treatments.

Thyroid hormones and androgens affect gene expression in frog reproductive organs differently between males and females.

Gonadal hormones may influence sex differences in play fighting in animals, but their effect on human spatial behavior is unclear and needs more research.

Some lesser-known causes of PCOS include autoimmune issues, genetic mutations, and changes in the body's microbiome.

Changes in gut bacteria can contribute to the development of Polycystic Ovary Syndrome (PCOS), affecting metabolism, immunity, and causing inflammation. Treatments may involve adjusting these factors.

Sex hormones may influence COVID-19 severity, with males at higher risk, and certain hormone therapies could potentially treat the virus.

Sex hormones affect brain injury differently in males and females.

The document concludes that there are still unknowns about the effectiveness, risks, and detection of performance-enhancing drugs, and doping remains a challenge.

Alopecia in captive rhesus macaques is affected by season, sex, age, housing, and stress, with complex links between stress hormones and hair loss.

Sex hormones like estrogen and testosterone may affect COVID-19 severity differently in men and women, potentially influencing prevention and treatment strategies.

The document concludes that for hair and feather growth, it's better to target the environment around stem cells than the cells themselves.

Glucocorticoids and sex hormones affect skin health, with potential for targeted treatments to minimize side effects and treat skin conditions.

Male hormones like testosterone may make COVID-19 worse, and testing for sensitivity to these hormones could help predict how severe a patient's symptoms might be. Treatments that reduce these hormones are being explored.

Some ovarian tumors can cause masculinization, and it's important to check for various causes when this symptom is present.

High androgen levels in postmenopausal women may suggest an ovarian tumor, and removing it can improve heart and metabolic health.

Male hormones, particularly DHT, are linked to male pattern hair loss, and treatments like finasteride can help, but they don't work for postmenopausal women's hair loss, which may have different causes.

Male hormones worsen kidney transplant damage, but blocking them helps.

Understanding Polycystic Ovary Syndrome (PCOS) and its causes can lead to effective treatments.