This 5th wave of data, collected in 1999, provides follow-up with 2,123 respondents from Alameda County who were originally interviewed in 1965 for the 1st wave of the Health and Ways of Living Study. The purpose of the survey was to explore the influences of health practices and social relationships on the physical and mental health of a typical sample of the population. Part 2 of this collection contains mortality data including cause and year of death. The first wave of the study, HEALTH AND WAYS OF LIVING STUDY, 1965 PANEL: [ALAMEDA COUNTY, CALIFORNIA], collected information for 6,928 respondents (including 360 men and 530 women aged 65 years and older) on chronic health conditions, health behaviors, social involvements, and psychological characteristics. The second wave, the 1974 panel, ALAMEDA COUNTY [CALIFORNIA] HEALTH AND WAYS OF LIVING STUDY, 1974 PANEL, collected information from 4,864 of the original respondents. The third and fourth waves, ALAMEDA COUNTY [CALIFORNIA] HEALTH AND WAYS OF LIVING STUDY, 1994 and 1995 PANELS, provided a follow-up of 2,729 original 1965 and 1974 respondents. The fourth wave is a follow-up to the 1994 panel and contains 2,569 cases.