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Humans have limited regenerative abilities, but new evidence shows the adult brain and heart can regenerate, and future treatments may improve this by mimicking stem cell environments.

Hormonal changes and psychological issues can cause sexual dysfunction in postmenopausal women. Behavioral therapy is recommended first, with hormone replacement helping some symptoms but not libido. Testosterone can improve libido, but its effects on overall sexual function are unclear. Emotional and relationship issues should be addressed before using medication, and the benefits and risks of testosterone supplementation should be considered.

Certain cells in the adult mouse ear come from cranial neural crest cells, but muscle and hair cells do not.

People in Jeddah know about Vitamin D and its sources but are unclear on how much they need daily, and while many women take supplements, attitudes towards increasing Vitamin D levels vary.

DNA methylation is essential for skin and hair follicle development, and could be a target for treating skin diseases.

Modifying certain signals in the body can help wounds heal without scars and regrow hair.

Progesterone initially worsens but later reduces neuropathic pain in mice, through different mechanisms.

Skin grafts are a common, minimally invasive way to close wounds in dogs, but better methods are still being sought.

Epithelial stem cells are crucial for tissue renewal and repair, and understanding them could improve treatments for damage and cancer.

Improving artificial vascular grafts requires better materials and surface designs to reduce blood clotting and support blood vessel cell growth.

Most adult chronic hair pullers are women who started in their early teens, often have other mental health issues, and may pull hair due to underlying psychiatric conditions.

Polycystic ovary syndrome costs the U.S. over $4 billion a year, mainly from treating related health issues.

The skin has a complex immune system that is essential for protection and healing, requiring more research for better wound treatment.

Polysaccharides have many health benefits and are used in drugs, but isolating and purifying them is complex and requires careful methods.

TGF-β is crucial for tissue repair and can cause diseases if not properly regulated.

Some patients taking finasteride or dutasteride may have ongoing sexual problems and depression even after stopping the medication.

Artificial skin development has challenges, but new materials and understanding cell behavior could improve tissue repair. Also, certain growth factors and hydrogel technology show promise for advanced skin replacement therapies.

Special fiber materials boost the healing properties of certain stem cells.

Some medicinal plants can help heal wounds and may lead to new treatments.

Blood vessels and specific genes help turn cartilage into bone when bones heal.

Liposomal systems show promise for delivering drugs through the skin but face challenges like high costs and stability issues.

Microneedles improve drug delivery in various body parts, are safe and painless, and show promise in cosmetology, vaccination, insulin delivery, and other medical applications.

Fat-derived stem cells show promise for skin repair and reducing aging signs but need more research for consistent results.

Macrophages help heal nerves by aiding the maturation of Schwann cells and are important for nerve repair.

Low doses of some substances can be beneficial, while high doses can be harmful or toxic.

Cepharanthine is a well-tolerated drug with multiple medical uses, including anti-inflammatory and anti-cancer properties.

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

COVID-19 can cause skin issues like rashes and "COVID toes," and people with skin conditions should adjust their treatments if they get the virus.

Smart biomaterials that guide tissue repair are key for future medical treatments.

Shen-Min, a hair growth supplement, likely caused acute hepatitis in a woman, improving after she stopped taking it.