This book covers the central aspects of Advancing Research on Active Aging and Participation , illustrating how individuals can prepare for old age and promote their own well-being.The increase in the aging population has been foreseen for a long time. Traditionally, aging is considered to comprise progressive decline of health and social life, stemming from biased selection of predominantly negative outcomes in studies. However, changes in the life stage of old age have been so rapid that the general perception of growing old has become somewhat outdated. There is an evident need for a multidisciplinary work that describes aging and old age based on the latest knowledge. Dealing with aging in all areas of society should be based on knowledge, not assumptions.This book provides up-to-date information on how aging can be studied and how modern times are reshaping it. Besides, it demonstrates how a more positive approach in aging research will structure the ideas and alleviate the prejudices we have about aging and old age. The book is intended for students and professionals in the social, leisure and health care fields at universities. It can also be adopted for education in the fields of physical education, medicine, and psychology. Additionally, individuals working in the field of health, functional ability, physical activity, rehabilitation, mental health, and well-being of the aging population will benefit from this work.