UN has developed Sustainable Development Goals (SDGs) for highlighting a uniform framework addressing global challenges. The focus of SDGs is to improve quality of life on the planet by dealing with issues related to poverty, hunger, education, inequality, climate change, environment and health. The goals are set to be achieved by 2030 and nations around the world are implementing innovative measures to contribute to this global agenda. This chapter begins with an overview of 17 SDGs, followed by a discussion on the ways in which technology could support each SDG. A detailed account of SDG 3 has then been given and the three key technologies internet of Things (IoT), Artificial Intelligence (AI) and Data Science, which are the focus of this book have been defined. IoT, AI and DS can significantly contribute to SDG 3 by offering greater accessibility and precision in healthcare. A nexus based on these technologies, and referred as IoT-DS-AI nexus has been proposed for illustrating end-to-end technology architecture to be deployed for global healthcare systems. Finally, the roadmap to the book has been presented by listing the contents of subsequent chapters.