Health care aims to improve the overall health of human beings through the diagnosis, prevention, treatment, amelioration, or cure of injuries, diseases, illnesses, and other mental and physical impairments. It encompasses work done in providing primary care, secondary care and tertiary care as well as public health. Professionals and practitioners associated with dentistry, midwifery, optometry, psychology, physical therapy, medicine, athletic training, pharmacy, nursing, audiology, occupational therapy, and other health professions are a part of the overall health care system. Advancements in technologies have transformed the healthcare sector, resulting in improvements in the detection, treatment and prevention of diseases. Healthcare sector also makes use of technologies such as social media monitoring, 3D printing, geospatial technologies, telehealth, and wearables to improve patient care and outcomes. This book provides significant information to help develop a good understanding of the new frontiers in health care. It covers in detail some existent theories and innovative concepts revolving around this domain. The extensive content of this book provides the readers with a thorough understanding of the subject.