The anthropogenic load on the environment increases every year. Noise pollution is particularly significant, as it disrupts communication between animals and alters their behavior, leading to ecological imbalances and disease. Among the many markers of well-being, telomere length serves as a kind of repository for all negative effects and can be considered a universal indicator of health. Telomere length under acoustic stress has been studied in a small number of studies on humans, birds, and fish. These experiments have shown that telomere length typically decreases under the influence of elevated sound pressure. Here, the authors provide a review of these studies and synthesize the emerging evidence linking acoustic stress to accelerated cellular aging and propose a unified molecular pathway centered on oxidative stress and telomere maintenance. Furthermore, the authors explore the potential for telomere length dynamics to serve as a predictive biomarker for animal well-being in increasingly noisy environments.