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Different hormones affect hair growth and conditions, with some causing hair loss and others promoting it.

Male pattern baldness is mostly inherited, involves many genes, and is linked to other traits like early puberty and strong bones.

Gender affects hair and scalp characteristics, with differences in hormone responses, graying patterns, and trace metals.

Lifestyle changes and clomiphene are first-line treatments for infertility in women with PCOS, with other options available if these fail.

Aging alone barely affects the number of hair follicles, meaning hair loss is minimal without other conditions like androgenetic alopecia.

Menopause-related hormonal changes affect hair but are not the only cause of hair changes in middle-aged women.

Age, smoking, and lower BMI increase facial wrinkles; men wrinkle more than women, except in old age; pale skin and certain hormonal factors can protect against wrinkles.

Children's hairlines change shape as they grow, with women often developing a widow's peak and men's hairlines becoming more convex and possibly balding at the temples, influenced by genetics and hormones.

About 40% of women by age 60 experience significant hair loss, often due to androgenetic alopecia, with treatments like minoxidil available and hope for future cures.

Hairline recession makes Asian males look older, especially in mid-young age; proper hairline position can help them look younger.

Male faces age with more wrinkles and hair loss, influenced by both body changes and environmental factors.

Women's hair gets thinner and grayer as they age, with treatments available for hair loss and graying.

Plumbago zeylanica extract helps hair growth and reduces a hair loss-related enzyme.

Men and women experience skin aging differently due to changes in sex hormone levels with age.

Women's hair generally gets thinner and less dense starting in their mid-thirties, with hair loss becoming more common as they age due to both genetics and environment.

Male pattern baldness may be caused by scalp pressure on hair follicles, which increases with age and leads to a cycle of hair loss. This process is not directly determined by genes.

New hair can grow from large wounds in mice, but less so as they age, involving reprogramming of skin cells and specific molecular pathways.

People with alopecia are at higher risk for heart disease and have more heart-related risk factors.

Hair gets thinner, grayer, and changes texture with age due to genetics, environment, and cellular changes, affecting the growth cycle.

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

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

Male pattern baldness affects 38.52% of Asian men in Bangkok, increasing with age and possibly linked to environment and diet.

The guideline suggests using specific criteria to diagnose PCOS, recommends various treatments for its symptoms, and advises screening for related health issues.

Beard hair follicles have more androgen receptors than non-balding scalp hair follicles.

Minoxidil can reduce functions related to androgen receptors.

Androgens can both stimulate and cause hair loss, and understanding their effects is key to treating hair disorders.

Dihydrotestosterone (DHT) is crucial for conditions like male-pattern baldness and acne, and measuring a byproduct, androstanediol glucuronide, is a better way to assess DHT's effects than DHT blood levels.

The effects of estrogen on human scalp hair growth are unclear and need more research.

Higher androgen levels do not cause baldness in men.

The Cross-section Trichometer is a new tool that can measure hair quantity and detect hair loss and growth.