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Premature graying of hair significantly harms psychological and social wellbeing.

The document explains hair and nail biology, common hair loss conditions and treatments, oral and genital skin diseases, and the risks and treatments associated with squamous cell carcinoma.

The document discusses various diseases of the outer ear, categorized by symptoms like redness, crusts, bumps, pus-filled lesions, lumps, ulcers, and hair loss.

Premature graying of hair is linked to vitamin D and B12 deficiencies, thyroid issues, iron imbalance, stress, and lifestyle habits, and affects quality of life.

Ringworm in cattle can be effectively treated with Povidone iodine and Whitefield ointment.

KIF18B is important for correctly positioning cell division machinery in skin cells, affecting hair follicle development.

Hair color is influenced by genetics and can indicate certain health conditions.

Plant roots respond to fungus smells by possibly using certain proteins and a plant hormone to change root growth, but more research is needed.

MRI helps distinguish between pituitary adenomas and craniopharyngiomas, guides treatment for pediatric CNS tumors, and assesses rhinocerebral mucormycosis with a high mortality rate in transplanted patients.

A man developed a rare late-onset hair-pulling disorder, usually seen in younger people.

Short-acting testosterone injections in a clinic are a preferred treatment for low testosterone because they work well, are convenient, and patients stick with the treatment.

The chapter explains that there are many genetic skin disorders affecting skin cell formation, including both common and rare types.

Men with male pattern baldness may have a higher risk of heart disease due to increased levels of a specific lipid in their blood.

MicroRNAs are crucial in controlling cell signaling, affecting cancer and tissue regeneration.

Vitiligo is a skin condition causing white spots, more common in women, often starts before age 20, and can affect mental health.

Hair cortisol levels can show increased stress during late pregnancy but only for up to six months.

The document concludes that non-binary individuals need compassionate support and recognition in healthcare, without being pathologized.

The study found that in Latin America, ancestry varies by location, influences physical traits, and affects how people perceive their own heritage.

Air pollution worsens skin diseases and aging by causing inflammation and oxidative stress.

Wnt signaling is crucial for pigmented hair regeneration by controlling stem cell activation and differentiation.

Dermoscopy is a useful tool for identifying features of skin conditions, but more research is needed to define its role in dermatology.

Melanocyte stem cells in hair follicles are key for hair color and could help treat greying and pigment disorders.

Different types of skin cells play specific roles in development, healing, and cancer.

More dermal papilla cells in hair follicles lead to larger, healthier hair, while fewer cells cause hair thinning and loss.

Hair color production in mice is closely linked to the hair growth phase and may also influence hair growth itself.

Lifestyle changes can improve body composition, excess male hormone levels, and insulin resistance in women with PCOS.

Fungi-produced compounds can change plant root growth.

Hair loss common in Australia; men affected earlier, more often than Asians; women less concerned.

Targeted cancer therapies often cause serious skin problems that need careful management.

Wnt signaling controls whether hair follicle stem cells stay inactive or regenerate hair.