This report, which was commissioned by the Department of Health and Children, is part of a series based on the main SLÁN 2007 survey which was carried out by a research consortium involving NUI, Galway, the Royal College of Surgeons in Ireland, the Economic and Social Research Institute, and University College Cork. Involving face-to-face interviews with a nationally representative sample of 10,364 respondents, the study is the largest national survey to date on the extent of both positive and negative mental health and social well-being in the Irish adult population.