The Ipsos Mori Issues Index for December 2018 highlights key concerns among British adults, with 67% citing EU/Europe/Brexit as the most important issue, followed by NHS healthcare at 42%. The document discusses long-term trends in public concern over various issues, showing how perceptions have evolved over the years, particularly in the context of political events. Notable issues include poverty/inequality, crime, housing, and the economy, all of which reflect significant societal challenges faced by the UK.