Presenting the latest research in the biology of aging, this volume addresses important theoretical issues focusing on the basis for why humans live as long as they do. Expert authors combine three general paradigms of aging research: demographic studies, evolutionary studies, and studies of biological mechanisms.

Topics explored include:

• Why does aging occur?
• Cellular aging
• Models in aging research
• Modern approaches to the mechanisms of aging
• The genetics of behavioral aging

Richard Adelman traces the ways in which Romantic writers responded to a debate over the dangers and rewards of idle contemplation.