This report presents information about the health status of older workers as it relates to extended work lives. The report contains unpublished data on the health status of civilian, noninstitutionalized middle-aged and older adults; the data are disaggregated so that narrow age differences within the older population can be observed and are presented to reveal the health patterns of the cohorts for whom worklife extension would be most relevant (persons aged 62-64 and 65-69). Following the executive summary and introduction, the major part of the report is presented in chapter 3, "Health and the Older Population," which addresses the challenge of defining and measuring health. Standard measures of health, such as the presence/absence of disease, physical and functional impairment, work disabilities, and mobility and activity limitations, are discussed. Other measures of health (use of medical services) and physiological measures are also described. Numerous data tables accompany the text. Chapter 4 presents issues related to health, aging, and work which arise from the consideration of the data presented previously and discusses the need for further research. The report is summarized in chapter 5. (MCF)