This FOA issued by the National Institute on Aging and the National Institute of Nursing Research encourages Exploratory/Developmental Research Project Grant (R21) applications from institutions or organizations that propose to conduct research in the behavioral and social sciences on the consequences of natural and man-made disasters for the health and well-being of the elderly, with an ultimate goal of preventing or mitigating harmful consequences. Disasters include weather-related events, earthquakes, tsunamis; large-scale attacks on civilian populations, technological catastrophes, and pandemics.