Designed for upper-level, one- or two-semester courses, this new edition presents students with the most readable, logical, and up-to-date informationavailable about the biology of human aging. Joining respected author John Hampton are authors Ruth Craven and Margaret Heitkemper. Both bring to thisnew edition a wealth of information about the latest research findings in this growing field. Updated to be the most thorough resource available, the secondedition's logical organization builds in complexity. Material is introduced in a straightforward manner, and later reappears in more detail.