Biogerontologists are now in a position to construct general principles of aging, and genuine attempts are being made to test and develop effectives means of intervention, prevention and treatment of age-related diseases, and for achieving healthy old age. This book takes status of the molecular, cellular, hormonal, nutritional and lifestyle strategies being tested and applied. The book is comprised of inter-dependent chapters written in the form of critical reviews by world leading researchers and practitioners in their respective fields. The format of the articles is a semi-academic style in which research data from various experimental systems is presented while focusing on their applications in human beings with respect to the prevention and treatment of age-related impairments. The target readership is the undergraduate and graduate students in the universities, medical- and nursing-colleges, post-graduate students taking up research projects on different aspects of biogerontology, and practicing clinicians. This book could be an important volume for college, university and state libraries maintaining a good database in biology, medical and biomedical sciences. Furthermore, this book will also be of much interest to the pharmaceutical, and nutrition and healthcare industry for an easy access to accurate and reliable information in the field of aging research and intervention.