Cognitive Function and Ageing Studies - Wales (CFAS-Wales) is a longitudinal study looking at health and cognitive function in older people living in Wales. The Economic and Social Research Council and Higher Education Funding Council for Wales have provided funding for the project, which is being led by Professor Bob Woods at the Dementia Services Development Centre (DSDC), Bangor University.

The research is being conducted in Wales by Bangor University and Swansea University, and will be carried out in four key locations - Gwynedd and Anglesey in the North, and Neath and Port Talbot in the South.