People who regularly put in overtime and work 10 or 11-hour days increase their heart disease risk by nearly two-thirds, research suggests. The findings come from a study of 6,000 British civil servants, published online in the European Heart Journal. After accounting for known heart risk factors such as smoking, doctors found those who worked three to four hours of overtime a day ran a 60% higher risk. Experts said the findings highlighted the importance of work-life balance. – From BBC