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Human skin makes sexual hormones that affect hair growth, skin health, and healing; too much can cause acne and hair loss, while treatments can manage these conditions.

Stress increases neurosteroids that help prevent seizures.

Human skin can make serotonin and melatonin.

Hair loss in women is genetic, diagnosed by examination and biopsy, and treated with minoxidil, finasteride, or transplantation.

Insulin resistance and obesity are key factors in the development and worsening of polycystic ovary syndrome, and lifestyle changes are important for managing it.

Chemotherapy causes hair loss by damaging hair follicles and stem cells, with more research needed for prevention and treatment.

Male and female bodies respond differently to stress, influenced by hormones and development stages, with implications for stress-related diseases.

Stress stops hair growth in mice by causing early hair growth phase end and harmful inflammation through a specific nerve-related pathway.

Alopecia areata is likely an autoimmune disease with unclear triggers, involving various immune cells and molecules, and currently has no cure.

Women look young for their age due to larger lips, less sun damage, and genes that prevent gray hair and wrinkles.

Congenital Adrenal Hyperplasia is a genetic disorder with two forms, causing symptoms like early puberty and severe acne, but can be identified through screening and treated with glucocorticoids.

Alopecia areata is an autoimmune disease causing patchy hair loss, often with other autoimmune disorders, but its exact causes are unknown.

Postpartum depression is linked to changes in brain chemicals, inflammation, stress, and certain genes, and can potentially be identified by markers like specific steroids, serotonin levels, and vitamin D levels.

Finasteride treats enlarged prostate and hair loss, but may cause side effects in some patients.

The conclusion is that PCOS is caused by ovarian sensitivity to hormones and disrupted hormone control, possibly due to ovarian factors, and more research is needed.

Hair follicles produce and respond to melatonin, affecting hair growth and sensitivity to estrogen.

Estrogens help reduce skin aging, and SERMs might offer similar benefits without the risks of hormone therapy.

Most women with PCOS have high levels of male hormones, and free testosterone is the best marker for this.

Hormones, especially androgens, play a big role in acne, but most acne sufferers don't have a hormone disorder. Hormonal treatments, including birth control pills, can be very effective for women whose acne doesn't improve with regular treatments.

The update highlights that non-classic congenital adrenal hyperplasia is common in women with excess male hormones, requires specific hormone tests for diagnosis, and has various treatment options depending on age and symptoms.

Adult female acne treatment should be personalized, considering individual preferences and pregnancy, using various topical and oral medications while managing side effects and resistance.

Children with atopic dermatitis often have sleep problems, affecting their growth and behavior.

Stress increases nerve fibers and immune cell activity in mouse skin, possibly worsening skin conditions.

Some drugs can cause skin, nail, and hair problems, which are important for healthcare professionals to recognize and report.

Melatonin helps regulate hair growth and protects the hair follicle from stress.

The document concludes that hair is complex, with a detailed growth cycle, structure, and clinical importance, affecting various scientific and medical fields.

A new genetic region, 17q21.31, is linked to higher ovarian cancer risk.

Nerves and chemicals in the body can affect hair growth and loss.

The document concludes that proper diagnosis and a multidisciplinary approach are crucial for managing Congenital Adrenal Hyperplasia effectively.

Prolactin affects hair growth and skin conditions, and could be a target for new skin disease treatments.