Chronic diseases are health problems requiring ongoing treatment for a period of years or decades, implying that these diseases are recurrent, long-lasting, persistent and cannot be cured. Though they may or may not be caused (or made worse) by work, chronic diseases can have a serious impact on the working capacities of the people affected. Chronically ill employees often experience great difficulties either staying at work or returning to work after a long period of absence. This report reviews the main definitions and available information on chronic diseases in relation to employment in the EU Member States and Norway. Read more in the report.