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Testosterone therapy may improve mood, well-being, and sexual function in premenopausal women, but more research is needed on its long-term safety and effectiveness.

Thyroid diseases may contribute to autoimmune skin diseases, and more research is needed on their relationship.

Hair grays due to oxidative stress and fewer functioning melanocytes.

Human skin acts like a hormone-producing organ, making and managing various hormones important for skin and hair health.

Childhood sexual trauma, especially between ages 5-7, is linked to lower cortisol levels in adult hair, suggesting long-term stress response changes.

COVID-19 can cause hair loss, loss of taste and smell, skin changes, and eye problems.

Transdermal testosterone can improve sexual desire in postmenopausal women but lacks long-term safety data and is not FDA-approved for this use.

The document concludes that hair loss has many causes and treatments vary, including medication for pattern baldness and addressing underlying issues for other types.

Cats lose fur due to various reasons, including allergies, infections, genetics, hormones, diet, cancer, stress, and some conditions are treatable while others are not.

Ionizing radiation damages human hair follicles by stopping cell growth, causing cell death, disrupting color, and increasing stress and damage markers.

Different types of hair loss in dogs and cats have various causes and treatments, with outcomes ranging from good to uncertain.

Blocking allopregnanolone production in mice makes them more anxious after stress, but this can be reversed with a drug that mimics allopregnanolone.

A patient produced cortisol after adrenalectomy, possibly due to residual tissue or other body parts making steroids.

Testosterone and its byproducts help support male sexual behavior through different pathways in the brain and body.

Black tea extract at 5% concentration promotes the most hair growth.

Reassurance and counseling are key in managing acute telogen effluvium, with supplements possibly offering a placebo effect.

Minoxidil helps treat eyebrow thinning, monilethrix, early hair loss, and shortens chemo-related hair loss.

Stress hormone corticosterone suppresses hair growth by affecting stem cell activity and Gas6 protein expression.

Most hair loss can be diagnosed with patient history and physical exam, and a few common types make up most cases.

Adult female acne is complex and requires a combination of treatments for effective management.

Segmental hair analysis can track testosterone over time but needs adjustments for sex, hair color, and washing frequency.

Finasteride may affect PNMT, causing side effects.

Women with PCOS have more depression and stress due to high androgen levels, not obesity or insulin resistance.

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

Plant extracts in shampoo improved hair thickness and density in men with hair loss.

Most lab tests for patients with Telogen effluvium, a type of hair loss, show no or mild abnormalities; only a few specific tests are useful.

Menopausal acne is treated with medications and lifestyle changes, but careful choice is needed due to side effects.

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

New oral treatment, finasteride, effectively and safely treats common hair loss.

The guidelines advise against using testosterone and DHEA in women for most conditions due to safety and effectiveness concerns, but suggest considering testosterone for postmenopausal women with low sexual desire.