Watch out, it could backfire. People who put in long hours on the job are more likely to suffer from hypertension than those who work less, according to researchers at the University of California-Irvine.

In a study of survey responses from 24,205 working Californians in 2001, the scientists found that employees who clocked more than 51 hours a week were 29 per cent more likely to have diagnoses high blood pressure than those who worked fewer than 40 hours. Even just a few hours of overtime - between 41 and 50 hours of labor a week - increased the risk of high blood pressure by 14 per cent.

If you’re out to impress the boss just make sure it isn’t at the expense of your health. It may do more bad than good over the long run.