TY - BOOK AU - Austad,Steven N. TI - Why we age: what science is discovering about the Body's Journey through life SN - 0471148032 PY - 1997/// CY - New York PB - John Wiley & Sons KW - Aging KW - physiology KW - Life expectancy N1 - Includes bibliographical references (p. 222-236) and index ER -