Immortality Reconsidered: Clinical Challenges at the Frontier of Plastic Surgery.

<b>Background/Objectives:</b> Immortality and anti-aging research is accelerating, with implications across medicine. This narrative review explores the biological principles, translational innovations, and ethical considerations at the intersection of aging and plastic surgery, reframed for a broad clinical audience. <b>Methods:</b> A narrative review of the literature from PubMed, clinical trials, and translational studies was conducted, with emphasis on regenerative medicine, stem cells, tissue engineering, gene editing, and longevity pharmacologics within the field of plastic and reconstructive surgery. <b>Results:</b> Key themes include (1) the biology of aging and epigenetic reprogramming, (2) esthetic and regenerative innovations with broader clinical significance, (3) emerging genetic and pharmacologic longevity strategies, (4) ethical and regulatory challenges, and (5) future directions such as nanotechnology, artificial intelligence, and digital immortality. <b>Conclusions:</b> Immortality remains an aspirational frontier, but innovations in regenerative science and longevity research offer opportunities for improving healthspans. Medicine as a whole must balance innovation with ethics, equity, and safety in translating these discoveries to patient care.