This report is the 15th in a series of updates on worksite health promotion activities in the United States. The first section summarizes the results of three recent surveys: a study of the extent of worksite wellness activities in the United States (funded by the Office of Disease Prevention and Health Promotion); a 1986 Harris poll of Americans on their life-styles; and a 1986 telephone survey that compared self-reported health behaviors in 25 states and the District of Columbia. The second section discusses the results of evaluation studies of four major comprehensive health promotion programs offered by the following firms: Control Data Corporation, AT&T Communications, Johnson & Johnson, and Blue Cross and Blue Shield of Indiana. The third section reports selected research findings that have been published since the last in this series of updates. The following are among the research findings discussed: smokers who quit decrease their risk of stroke by more than half; smoking increases motor vehicle accidents and traffic violations; smoking costs the United States $53.7 billion in medical and salary costs yearly; age, income, education, and life-style can predict stress levels; significant increases in safety belt use have occurred; child safety belts and rear seat lap belts have proven effective; and obesity may result from lack of activity rather than from overeating. (MN)