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Estrogens significantly influence hair growth by interacting with receptors in hair follicles and may help regulate the hair growth cycle.

Skin aging is due to impaired stem cell mobilization or fewer responsive stem cells.

Young adults have about 230,000 tactile nerve fibers, decreasing 5-8% per decade with age.

Some viruses can cause cancer by changing cell processes and avoiding the immune system; vaccines and targeted treatments help reduce these cancers.

The document concludes that a better understanding of cell changes during wound healing could improve treatments for chronic wounds and other conditions.

Stem cells in the hair follicle are regulated by their surrounding environment, which is important for hair growth.

Forehead modification greatly increases the perception of femininity and is a safe procedure.

The document concludes that understanding hair structure is key to diagnosing hair abnormalities and recommends gentle hair care for management.

Substances from Chinese medicines show promise for immune support and disease prevention, but the way they are processed affects their effectiveness.

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.

Eclipta alba extract improved learning, memory, and stress-related ulcers in rats without affecting movement or causing anxiety.

Fullerenes show potential in skin care but need more safety research.

Platelet-rich plasma might help tissue regeneration in dentistry, but results vary and more research is needed.

Sponge helps heal wounds faster with less inflammation and better skin/hair growth.

Skin has specialized touch receptors that can tell different sensations apart.

Larger spheroids improve hair growth, but size doesn't guarantee thicker hair.

Menopause reduces skin collagen and elasticity, and while estrogen therapy can help, its risks require careful consideration.

The protein folliculin, involved in a rare disease, works with another protein to control how cells stick together and their organization, and changes in this interaction can lead to disease symptoms.

Frequent hair coloring and styling can damage hair and cause breakage or loss.

Pregnancy causes skin changes like darkening, hair thickening, nail changes, and increased risk of skin growths, most of which usually resolve after birth.

The patient's liver did not fully grow back and she had serious temporary side effects after a very large liver surgery.

Keratin proteins are crucial for healthy skin, but mutations can cause skin disorders with no effective treatments yet.

Advanced hydrogel systems with therapeutic agents could greatly improve acute and chronic wound treatment.

Shrinking skin cancer increases the chance of cancer in nearby lymph nodes.

Certain immune system proteins are important for skin healing but can cause problems if there are too many of them.

Minoxidil promotes hair growth by increasing cell division and DNA synthesis.

Nanocrystals improve skin penetration and stability of caffeine, suggesting a new method for delivering similar substances through the skin.

Products should be called 'sperm-safe' only after thorough, well-designed tests.

Photothermal hydrogels are promising for infection control and tissue repair, and combining them with other treatments could improve results and lower costs.