Stress at work raises the risk of heart disease, according to a study published in the European Heart Journal. The study, which examined more than 10,000 British civil servants, found that among persons under the age of 50, those working in a stressful environment had a 70% higher chance of developing a heart problem than those working in a stress-free environment. Those experiencing job-related stress usually had poor diet and improper or no exercise regimen. The researchers said, however, that stress and heart risk were correlated, irrespective of lifestyle.