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Humans evolved to have less hair and more sweat glands than chimpanzees and macaques.

Small white dots on the scalp seen with a dermoscope correspond to sweat ducts and vary with different hair disorders.

Enlarged sweat gland ducts may indicate scarring hair loss.

Widened sweat ducts are a very specific sign of scarring hair loss.

A 12-year-old boy in rural south India had a rare skin condition causing hair loss and inability to sweat.

Aging causes sweat glands to shrink, leading to skin issues, and blue light can help hair grow.

A woman with hair loss had a benign sweat duct tumor found during a scalp biopsy.

Boys with less severe EDA mutations in XLHED have milder symptoms and better sweat and hair production.

A rare case of scleredema in a diabetic woman showed loss of sweat glands, causing heat strokes, with treatment only slightly improving symptoms.

Hair analysis showed very high metformin levels in two fatal overdose cases, suggesting it's useful in forensics but sweat may affect results.

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.

Low-dose acitretin helps nail psoriasis, stem cells may treat scarring alopecia, Chinese men have lower baldness rates, lateral foldplasty is good for ingrown toenails, hair diameter helps diagnose female baldness, childhood trauma linked to alopecia areata, certain hair-weaving leads to scalp conditions in African American women, and new methods for hair research and understanding hair and sweat gland development were introduced.

Human skin makes sexual hormones that affect hair growth, skin health, and healing; too much can cause acne and hair loss, while treatments can manage these conditions.

Apoptosis is essential for human skin development and forming a functional epidermis.

Different types of stem cells and their environments are key to skin repair and maintenance.

Modulating BMP activity changes the number, size, shape, and type of ectodermal organs.

Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.

Giving a special protein to dogs with a certain genetic disease improved their symptoms but didn't help with hair growth.

Different types of skin pores should be identified correctly and evaluated with suitable methods for reliable results.

Progress has been made in skin and nerve regeneration, but more research is needed to improve methods and ensure safety.

Advanced human skin models improve drug development and could replace animal testing.

Wait 4-5 weeks after drug use before hair testing and cut hair into three segments to confirm single drug exposure.

Condensed nanofat with fat grafts effectively improves atrophic facial scars.

Most cases of Temporal Triangular Alopecia are found in early childhood and may be related to genetic conditions.

Thyroid hormone affects skin health, with too little causing rough, pale skin and too much leading to smooth, thin skin, and may also impact wound healing and skin conditions.

Nevus comedonicus is a rare skin condition with grouped open pores, sometimes linked to other body issues.

The hydrogel with fractionated PRP improves skin regeneration by enhancing wound healing and growth of skin structures.

Heparan sulfate is important for hair growth, preventing new hair formation in mature skin, and controlling oil gland development.

The skin is the largest organ, protecting the body, regulating temperature, and producing hormones.

Sebum helps protect human skin from microbes.