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Using radiation to make mice's hair turn gray helps study and find ways to prevent or reverse hair graying.

The study concluded that both estrogen and androgen receptors, which decrease with age, are linked to skin aging and may be hormonally regulated.

A witch-hazel-based 5% minoxidil solution is effective and safe for women with hair loss who didn't respond to regular minoxidil, especially if they're sensitive to propylene glycol.

A patient with Werner syndrome showed a range of aging-like symptoms and metabolic issues, underscoring the need for early detection and treatment.

Melatonin, a hormone, can help protect skin from aging by reducing stress, inflammation, and damage, and may also help treat hair loss in women.

Finasteride is a safe and effective long-term treatment for male hair loss, especially when started early.

Men might have a version of the female disease, polycystic ovarian syndrome, shown by changes in hormone levels and early baldness, but more research is needed to fully understand it.

AMH helps estimate ovarian reserve but doesn't predict pregnancy chances; age is more important.

People with polycystic ovary syndrome have worse meibomian gland and ocular surface conditions.

Black-tailed deer have four types of pelages and molt twice a year.

Finasteride use in young men with hair loss is linked to sexual dysfunction.

Human hair contains more glycosaminoglycans in children than adults, and these compounds decrease with age, possibly affecting hair thickness.

Aging makes hair thinner and rougher, with less clear edges.

Ferulic acid helps stabilize vitamins C and E for better skin protection from the sun, certain compounds may promote hair growth, atopic dermatitis patients have lower skin defense molecules, older men are more likely to get a type of skin cancer, and a substance called relaxin may prevent age-related skin thickening.

SA linked to mitochondrial issues and oxidative stress, while AGA involves disrupted hair growth genes.

Aging skin cells change their lipid profiles due to stress, affecting skin health.

Stress from being transgender is linked to higher blood pressure at night and more inflammation, which may affect heart health.

Dutasteride does not impair mental function in elderly men with enlarged prostate.

French maritime pine bark extract significantly increased hair density in menopausal women.

Aging changes sugar molecules on skin stem cells, which may affect their ability to repair skin.

Flutamide and a new synthetic steroid affected brain and prostate chemicals and showed potential for treating androgen-related conditions and epilepsy.

The letter criticizes generalizations about older patients' abilities and calls for respectful, individualized care, while the original authors defend the need to adapt communication for those with impairments.

Seborrhea in Parkinson's disease may be linked to hormones, not autonomic impairment.

Amenorrhea is relatively rare and initial testing should check FSH, TSH, and prolactin levels.

Testosterone replacement can help women with low libido and mood, but they need to have enough estrogen first to avoid side effects.

The document concludes that identifying the cause of amenorrhea is crucial for proper treatment.

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.

Selenzin Peptide Active can effectively treat hair loss in postmenopausal women.

Tetracycline can stick to hair follicles and potentially cause hair loss.

High-resolution imaging is crucial for diagnosing and planning treatments in clinical anatomy and aging.