The diverse aspects of aging such as social, psychological, biological, cognitive and cultural aspects are studied within the discipline of gerontology. It draws concepts and researches from a variety of fields like biology, medicine, nursing, political science, dentistry, physical and occupational therapy, psychiatry, psychology and sociology. Gerontology helps in government planning, evaluating the impact of the elderly people on the society and the operation of nursing homes. Some of the major sub-specialties within this field are biogerontology, environmental gerontology, social gerontology and jurisprudential gerontology. Biogerontology seeks to intervene in the aging process as well as prevent diseases which are related to aging. This book unfolds the innovative aspects of gerontology which will be crucial for the progress of this field in the future. From theories to research to practical applications, case studies related to all contemporary topics of relevance to this field have been included in it. This book will serve as a valuable source of reference for graduate and post graduate students.