Editorial: Unraveling the complexities of premature aging: mechanisms and interventions

This Research Topic in Frontiers in Aging brings together four contributions-both original research and review-that collectively examine premature aging from from mechanistic, clinical, and population-based angles.The articles focus on several hallmark processes of aging, including genomic instability, telomere shortening, chronic low-grade inflammation, and shifts in reproductive timing.By combining cellular and molecular studies with epidemiologic and genetic analyses, the Research Topic underscores how diverse, interacting pathways shape the onset and course of premature aging, as well as its potential reversibility.Genomic instability is widely recognized as a central driver of premature aging, contributing to cellular dysfunction and tissue degeneration.In the first original research article, Chavan et al. investigated the reversal of perturbed DNA damage responses and HIV latency through pharmacological inhibition of histone methyltransferases in virally suppressed individuals living with HIV.The authors demonstrate that epigenetic modulation can restore defective DNA damage signaling pathways, thereby reducing viral persistence and aging-like genomic stress.These findings suggest that chronic viral infection and long-term antiretroviral therapy may accelerate biological aging through sustained epigenomic and genomic perturbations, and that targeting chromatin-modifying enzymes could represent a promising strategy to mitigate infection-associated premature aging phenotypes.Telomere attrition represents another key hallmark linking premature aging to metabolic dysfunction.In a comprehensive review, Jinesh et al. synthesize current evidence connecting telomere shortening with metabolic diseases such as obesity, insulin resistance, and type 2 diabetes.The authors emphasize the bidirectional relationship between metabolic stress and telomere dynamics, wherein oxidative stress,