AHAH (the index of ‘Access to Health Assets and Hazards’) Version 2 is a multi-dimensional index developed by the CDRC for Great Britain measuring how ‘healthy’ neighbourhoods are. It is an updated version of AHAH Version 1 and combines together indicators under four different domains of accessibility: Retail environment (access to fast food outlets, pubs, off-licences, tobacconists, gambling outlets),  ...