Includes bibliographical references (pages 60-79)One of the prime concerns of the modern field of gerontology is the cause of the degeneration which accompanies the aging process. Most theories attempt to answer this question either from the perspective of the geneticist, who primarily studies internal processes, or the environmentalist, who is concerned with external forces. Anthropologists have had little impact on the resolution of the problem. The primary purpose of this thesis is to demonstrate that most of the modern gerontological studies do not synthesize the genetic and environmental data; as a result, their conclusions appear to be very deterministic. The synthetic approach of the anthropologist, however, would stimulate broader n...