The transitional phase from pre-older adult to older adult affects the wellbeing of the concerned person economically, physically, and psychologically. This book is a description of the aging transition and discusses various psychological, health, and social challenges faced by older adults globally. It also offers a comparative study on the lifestyles of older adults in India and the United States.

Although there is no consensus yet on an all-encompassing theory of aging, this book centers on various theories related to aging processes in an effort to advance discussion on different aspects of aging. Various theoretical formulations, such as person-centered, Hinduism, biopsychosocial, and positive psychology, guided the author to address the topics covered in this volume.