The synergy between fog computing and the IoT facilitates the growth of smart applications and services, empowering various industries to harness the full potential of IoT technologies while ensuring faster and more efficient data processing. In essence, IoT devices collect data, and fog computing provide a mechanism for processing data closer to the source, optimizing performance, latency, privacy, and overall system efficiency. Together, these concepts contribute to building more effective and responsive IoT ecosystems. Fundamentals of Fog Computing and the Internet of Things for Smart Healthcare explores the intersection of fog computing and the IoT. The book educates researchers and graduate students about the concepts of fog computing and IoT, explaining how these technologies work, their benefits, and potential challenges. It discusses how fog computing enhances data processing in real-time. Alongside the companion book, 'Advances in Fog computing and the Internet of Things for Smart Healthcare', this book provides readers with a comprehensive understanding of how fog computing and IoT are transforming the landscape of healthcare, enabling more efficient, personalized, and accessible healthcare services.