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Brain-made chemicals can control nerve cell function differently in various parts of a mouse's brain, which may help us understand neurological conditions.

Calcium affects where root hairs grow, but other unknown factors determine their growth direction.

Hair follicle stem cells and skin cells show promise for hair and skin therapies but need more research for clinical use.

Temporary ROS production in cultured human hair follicles promotes growth and stem cell activation.

Taking Saw palmetto and Pygeum africana can change the levels of certain steroids in urine, which could cause confusion in doping tests.

Vitamin D affects Msx1 protein expression and may influence mineralized tissue health.

Researchers created a mouse model for Cushing's syndrome to study glucocorticoid excess and potential treatments.

The dermal papilla is crucial for hair growth and health, and understanding it could lead to new hair loss treatments.

Applying a special compound can promote hair growth without harmful side effects.

Antioxidants can benefit skin health but should be used carefully to avoid negative effects.

Long-term testosterone therapy can cause hormone suppression, affect prostate and heart health, and alter physical characteristics, but does not increase prostate cancer risk and needs more research for full risk assessment.

Wnt signaling is crucial for skin wound healing and reducing scars.

The method effectively detects banned substances in urine for sports antidoping.

Human hair contains various lipids that vary among individuals and help protect the hair.

Amenorrhea is when a woman doesn't have periods, with primary amenorrhea starting by age 15 or within five years of breast development, and secondary amenorrhea when periods stop for three months. It affects 3-4% of women not pregnant, breastfeeding, or in menopause, mainly due to polycystic ovary syndrome, hypothalamic amenorrhea, hyperprolactinemia, and ovarian failure.

Monitoring steroid hormones in blood can better detect testosterone doping.

Tiny natural vesicles from cells might help treat hair loss.

Hair color and length affect metabolite profiles in hair, so they should be considered in hair analysis.

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

A certain medication improved severe itching in a boy with liver and bowel disease by reducing histamine levels, suggesting a new treatment target.

High doses of fluconazole can cause reversible hair loss.

Testosterone therapy for postmenopausal women appears safe and may protect against heart disease, but requires constant monitoring and more research for long-term effects.

New UVA-responsive nanocapsules effectively kill microorganisms in hair follicles when activated by light.

Dutasteride may help protect neurons and reduce inflammation in Parkinson's disease.

Acetylcholine receptors might be involved in the development of acne inversa and smoking could worsen the condition.

Anabolic-androgenic steroids harm male hormone levels, sperm, metabolism, and can cause acne, hair loss, and breast growth.

Men and women react differently to opioids, with hormones potentially influencing these differences.

A young man had a rare case of hair cysts on his elbows, which was hard to diagnose and treat.

ROR-alpha may increase the growth of certain breast cancer cells by boosting aromatase, which could affect breast cancer prognosis.

Estrogen and its receptors play a key role in hair growth, with differences between males and females.