This book introduces the concept of m-Health, first coined by Robert S.H. Istepanian in 2003. The evolution of m-Health since then - how it was transformed from an academic concept to a global healthcare technology phenomenon - is discussed. Afterwards the authors describe in detail the basics of the three enabling scientific technological elements of m-Health (sensors, computing, and communications), and how each of these key ingredients has evolved and matured over the last decade. The book concludes with detailed discussion of the future of m-Health and presents future directions to potentially shape and transform healthcare services in the coming decades. -- Back cover.