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Smoking doubles the risk of blindness, and physical exercise helps dyslexic children read better.

Nearly half of the French individuals surveyed reported having a sensitive scalp, more common in women, often linked to hair loss and symptoms like itching, and triggered by factors including shampoos and pollution.

Androgens play a key role in causing PCOS (Polycystic Ovary Syndrome).

Long-term high testosterone levels can improve bone density and reduce body fat but may increase the risk of prostate cancer and high blood pressure.

Women with and without hair loss have similar amounts of exogen hairs, so these hairs are not a key factor in hair loss conditions.

Increased free testosterone can lead to stronger bones and less body fat but also higher risks of prostate cancer, hair loss, spine issues, and high blood pressure.

Activin A and follistatin control when ear hair cells form in mice.

Activin A promotes ear hair cell development, while follistatin delays it.

Chemotherapy patients don't all lose their hair due to factors like hair growth rates, age, genetics, and the type of drugs used.

The document concluded that FDA-approved treatments like minoxidil and finasteride are effective for hair loss, while the effectiveness of natural remedies and other non-approved treatments is not well-supported by evidence.

New treatments targeting skin stem cells show promise for skin repair, anti-aging, and cancer therapy.

The document concludes that permanent hair loss conditions are complex, require early specific treatments, and "secondary permanent alopecias" might be a more accurate term than "secondary cicatricial alopecia."

Improving skin barrier and using antifungal treatments can help manage dandruff.

Thioglycolate lotions are the most popular method for permanent waving and hair straightening.

Dandruff is a common, winter-worsened scalp condition linked to inflammation and microorganisms, treatable with products like ketoconazole, and may affect hair loss.

Hair transplantation is beneficial if the right patients are chosen and the procedure is done carefully.

The conclusion is that exogen is a unique hair cycle phase and the new sampling method specifically targets this stage, which may help in future hair loss research.

Understanding hair structure and growth is key for diagnosing hair diseases accurately.

White lupin uses specific genes to grow root hairs and access phosphorus when it's scarce.

Researchers created a fully functional, bioengineered skin system with hair from stem cells that successfully integrated when transplanted into mice.

Sex hormones may affect COVID-19 severity, with men often faring worse, and targeting related pathways could offer treatment options.

A man developed a rare scalp disorder, Folliculitis Decalvans, 20 years after hair restoration surgery, and it required long-term antibiotic treatment.

Skin stem cells in hair follicles are important for touch sensation.

Hair follicle stem cells are crucial for touch sensation and proper nerve structure in mice.