How was the research compiled?
The study tracked 6,000 British civil servants aged between 39 and 61, for an average of 11 years. It was put together by the Finnish Institute of Occupational Health, Helsinki and University College London.
What do the results mean?
The researchers said that possible reasons for the raised risk included undiagnosed high blood pressure, stress, anxiety or depression, and being highly driven, aggressive or irritable. Employees who work overtime may also be more likely to work while unwell, while those who do not get enough sleep or do not unwind after work may also be at higher risk.
European Heart Journal freelance media consultant Emma Mason sent the story on general release to national and broadcast press at the start of last week.
The story was picked up by the Today programme and featured on the BBC News Health website. The Daily Mail ran a story on page 26. Globally, Fox News and CNN in the US and the Straits Times in Singapore covered it.
60% - higher risk of heart-related issues from working overtime
2.6m people in the UK are living with coronary heart disease.