Aging: Biology and Behavior addresses behavioral changes in aging related to biological processes, focusing on the nature of changes in brain plasticity, factors influencing life-span, and environmental and social influences on health in the elderly. This book is divided into four main topics—longevity, aging, and mortality; aging brain and behavior; cognitive and social functioning; and health. In these topics, this publication specifically discusses the longevity in primates, life-span extension, environment and biology in aging, and some economic implications of life-span extension. The neurobiological basis of age-related changes in neuronal connectivity, aging and brain plasticity, and cognitive functioning in the elderly are also elaborated. This text likewise covers the life changes and disease in elderly populations, social stress and mental disorders in the elderly, and perspective of social epidemiology. This volume is a useful source to clinicians and students examining possible social and behavioral science research perspectives on aging.