Health care refers to the maintenance, development and improvement of health care facilities. It includes the study of treatments, prevention, diagnosis and cure of diseases and illnesses that plague the Earth and affect human beings. There are many professions that come under this vast field namely physicians, dentists, doctors, surgeons, allied health professionals, etc. This book is compiled in such a manner, that it will provide in-depth knowledge about the theories of health care. Also included in it is a detailed explanation of the various concepts and applications of the subject. The textbook is appropriate for those seeking detailed information in this area.