Book excerpt: This book demonstrates the efficacy of a multidisciplinary intervention strategy for promoting active and healthy ageing, with the assistance of dedicated technological resources. Taking an applied approach, this book promotes active and healthy ageing through the implementation of an intervention model based on the comprehensive geriatric approach (AGA). The proposed AGA model, entitled AGA@4life, is based on a holistic and multidisciplinary individual assessment protocol, with the consequent design and implementation of intervention strategies tailored to each individual, aimed at preventing frailty and functional, cognitive and social decline of the elderly. Intervention actions focus on personalized exercise programs, nutrition education, cognitive stimulation, co-morbidity monitoring, therapeutic counselling, and overall promotion of well-being. This book will be of interest to researchers, professionals, and students working in ageing and health, gerontology, and preventative and holistic approaches to well-being.