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Mouflon rams mature gradually with changes in body, horns, and hormones linked to age and seasons, reaching full sexual maturity well after puberty.

Finasteride treats enlarged prostate, shrinks it, improves urination, but may cause sexual dysfunction and isn't for women or children.

RSPO1 mutations in certain patients lead to skin cells that don't develop properly and are more likely to become invasive, increasing the risk of skin cancer.

A 22-year-old homosexual man was diagnosed with secondary syphilis, genital warts, and HIV, highlighting the high STI risk in men who have sex with men.

The document concludes that understanding health requires considering evolutionary perspectives on reproductive fitness, and recognizing the complexity of factors like diet, testosterone, and sexual orientation.

Black ethnicity, prior PSA tests, enlarged prostate, and family history increase prostate cancer risk; Asian ethnicity, obesity, smoking, diabetes, and less sexual activity or no children decrease risk.

Humans can accurately guess age from faces, with women being slightly better at it, and age perception is linked to evolutionary factors.

Different processes create patterns in skin and things like hair and feathers.

Chemotherapy caused a woman's permanent hair loss and early menopause.

Mothers have more hair proteins than their children, with age-related differences in protein patterns, and some proteins in hair could indicate early childhood development.

The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.

Most youth with gender dysphoria received hormones, had minor complications, and showed a decrease in suicide attempts after treatment.

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

Hair analysis for drugs needs a better understanding of how drugs enter hair, considering factors like hair structure and pigmentation.

Kids with alopecia areata may experience more stress but not necessarily feel more anxious or depressed than others.

No consistent link between genotype and phenotype in 5-α-Reductase type 2 deficiency.

Hair growth and health are influenced by stress and hormones.

As of 1994, treatments for liver cancer had not significantly improved patient survival.

The document concludes that more research is needed to fully understand the causes of PCOS.

A machine learning model called CATNIP can predict new uses for existing drugs, like using antidepressants for Parkinson's disease and a thyroid cancer drug for diabetes.

PSA levels could help detect illegal steroid use in female athletes but face challenges like cost and PCOS prevalence.

Hair length and thickness are related, with thickness peaking at about a quarter of the hair's maximum length.

Hair protein analysis might help identify a person's ethnicity, sex, and age in forensics.

The analysis aims to identify the most effective and safest treatments for alopecia areata.

Androgen therapy might help some women with low libido, but it has risks and should be used carefully.

Alopecia areata treatment should be personalized, using topical or systemic therapies based on severity, with promising options like JAK inhibitors needing more research.

Swedish men with the E213 A-allele of the androgen receptor have a lower risk of prostate cancer.

Looking older on the outside might be linked to aging faster on the inside and can be affected by lifestyle choices and health risks.

Melatonin may help with sleep issues, depression, and cancer, but more research is needed.

Hormone treatments for transgender individuals generally improve mental health and physical transition, with some health risks that require medical supervision.