%0 Journal Article %@ 2561-7605 %I JMIR Publications %V 8 %N %P e71777 %T Advancing Emergency Care With Digital Twins %A Li,Haoran %A Zhang,Jingya %A Zhang,Ning %A Zhu,Bin %+ School of Public Health and Emergency Management, Southern University of Science and Technology, 1088 Xueyuan Avenue, Nanshan District, Shenzhen, 518000, China, 86 13530405020, zhub6@sustech.edu.cn %K emergency care %K digital twin %K prehospital emergency care %K in-hospital emergency care %K recovery %D 2025 %7 21.4.2025 %9 Viewpoint %J JMIR Aging %G English %X Digital twins—dynamic and real-time simulations of systems or environments—represent a paradigm shift in emergency medicine. We explore their applications across prehospital care, in-hospital management, and recovery. By integrating real-time data, wearable technology, and predictive analytics, digital twins hold the promise of optimizing resource allocation, advancing precision medicine, and tailoring rehabilitation strategies. Moreover, we discuss the challenges associated with their implementation, including data resolution, biological heterogeneity, and ethical considerations, emphasizing the need for actionable frameworks that balance innovation with data governance and public trust. %R 10.2196/71777 %U https://aging.jmir.org/2025/1/e71777 %U https://doi.org/10.2196/71777