The long awaited sequel to Birren and Bengtson's landmark text, "Emergent Theories Of Aging" has arrived. Dedicated to James E. Birren, this volume continues to explore and expand upon the bases of theory-building and research design in aging. Renowned researchers examine biological, biomedical, psychological, and social science concepts and theories. In addition, this volume contains a new section that explores the potentials for successful interventions by applying theories to gerontological practice, public policy, and mental health and aging. This text is a valuable resource for gerontologists, academics, psychologists, and graduate-level students. The contributors include: James Birren, Gary Kenyon, Caleb Finch, Diana Woodruff-Pak, Paul B. Baltes, Margret Baltes, Laura Carstensen, Timothy Salthouse, Gisela Labouvie-Vief, Christine Fry, Dale Dannefer, and Margaret Gatz, among others.