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Cancer rates are increasing in developed countries, with estrogen, aging, low vitamin D3, and HPV infection as common causes.

Lasers are effective for some skin conditions but can cause side effects like scarring and pigment changes; careful selection is important, and botulinum toxin type A is successful in reducing sweat in palmar hyperhidrosis.

Genes related to pigmentation, body rhythms, and behavior change during hares' seasonal coat color transition, with a common genetic mechanism in two hare species.

Cold air and a chilled sapphire window both protect the skin during laser treatments, and work better with water or gel, especially for darker skin.

Intestinal stem cells can help repair skin damage from radiation.

Upadacitinib and narrowband UVB effectively treated a child's vitiligo and alopecia areata.

A man had two rare autoimmune diseases that might be connected.

Most vitiligo patients in Makkah are young women, often with family history and thyroid issues.

Early hair whitening may indicate a higher risk of heart disease in young and middle-aged men.

Greying hairs may be protected from alopecia areata.

Gray hair regained color after thyroid hormone treatment.

Alopecia areata is an autoimmune condition causing hair loss due to the immune system attacking hair follicles, often influenced by genetics and stress.

Premature graying of hair may suggest health issues and currently lacks effective treatments.

The document concludes that using specific tools and tests is essential for identifying the cause of hair loss and deciding on the right treatment.

Many elderly women experience unwanted facial hair and various hair loss conditions, with treatments available for each condition.

Graying hair happens due to aging and might be delayed by new treatments.

A woman lost most of her hair due to an allergic reaction to a hair dye ingredient.

Ruby laser hair removal significantly reduces hair density.

Premature hair graying may be a sign of increased risk for heart disease, indicating biological age is more important than actual age.

Patchy alopecia areata can affect only pigmented hairs, leaving gray hairs untouched.

Graphene-based hair dye is a safe, durable, and effective alternative to traditional black hair dyes.

Hair color is not a risk factor for developing alopecia areata.

Laser hair removal can be an effective last-resort treatment for men with stubborn Alopecia Areata who want to be uniformly bald.

Estrogen and androgenic hair increase melanoma risk, especially in European-ancestry individuals.

Hair health depends on various factors and hair loss can significantly affect a person's well-being; understanding hair biology is key for creating effective hair care treatments.

Trichoscopy is a useful tool for diagnosing and managing hair and scalp conditions, often better than traditional methods.

Genetics, stress, and health issues can cause early hair greying, which affects self-esteem, and there's no cure, only hair dye.

Photodynamic therapy can remove nonpigmented hair in mice and might work for humans.

Human hair provides more UV protection when aligned and at higher angles, but the scalp still gets UV exposure.

Vitamin B12 deficiency can cause reversible hair color loss in children.