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Changes in the HR gene have influenced hair growth and may lead to hair loss conditions in humans.

Maintaining skin health is crucial for overall well-being and involves protecting against environmental damage and using skincare products.

Charnoly bodies could be a marker for cell damage, and certain nutrients and proteins might prevent them, potentially helping with brain diseases and cancer.

Hairless mammals have genetic changes in both their protein-coding and regulatory sequences related to hair.

Reflexology massage helps hair regrowth in women after chemotherapy.

Hair transplant surgery reduces scalp sensitivity by almost 40%, and smokers have less scalp sensitivity than non-smokers. The time since surgery doesn't significantly affect this.

Hair can't be reliably repaired once damaged; prevention and proper product use are key to maintaining hair health.

The nucleus is key in controlling skin growth and repair by coordinating signals, gene regulators, and epigenetic changes.

Cosmetic procedures can harm hair, but damage can be minimized with knowledge and care; however, once hair is damaged, it cannot be reliably repaired.

Exposure to certain sex hormones can increase health risks, while some hormone therapies may offer benefits for specific conditions.

Tretinoin gel is safe for sun exposure, but tacalcitol doesn't significantly improve non-segmental vitiligo.

The document provides a comprehensive index of medical and surgical topics, including hair removal, hair restoration, and various treatments for injuries and conditions.

Certain skin drugs and topical agents, including some natural extracts and fragrances, can cause allergic reactions. Some hair dyes and extensions, as well as minoxidil, a hair growth treatment, can also cause allergies. Botulinum toxin A can effectively reduce sweat but may have temporary side effects.

Natural products like propolis are causing more skin allergies, and certain skin treatments and medications have various side effects and risks.

The document concludes that skin stem cells are important for hair growth and wound healing, and could be used in regenerative medicine.

Herbal remedies can cause adverse effects and need more safety research.

Hair follicle development is controlled by interactions between skin tissues and specific molecular signals.

Testosterone is important for men's sexual function, may help some women's sexual desire, while other hormones and neurotransmitters also play complex roles in sexual behavior.

Stress can worsen skin and hair conditions by affecting the skin's immune response and hormone levels.

Myo-inositol supplements may improve insulin sensitivity and help with conditions like PCOS and gestational diabetes, but more research is needed.

The Rotterdam Study updated findings on elderly health, focusing on heart disease, genetics, lifestyle effects, and disease understanding.

The Rotterdam Study aims to understand disease causes in the elderly and has found new risk factors and genetic influences on various conditions.

Polymeric nanoparticles show promise for treating skin diseases.

Chitin and chitosan are useful in cosmetics for oral care, haircare, and skincare, including UV protection and strength improvement.

Melatonin may help with sleep issues, depression, and cancer, but more research is needed.

The cuneate nucleus has two main neuron types: relay neurons and interneurons.

Erectile dysfunction is increasingly common in men under 40, with many physical and psychological causes, and various treatment options available.

Masculine facial features may not reliably indicate heritable health, and more research is needed.

The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.

Asia has made significant progress in tissue engineering and regenerative medicine, but wider clinical use requires more development.