Researches in the UK studied 6000 British civil workers and reported online in the European Heart Journal that those working 3-4 hours of overtime per day had 60% greater risk of hear disease compared to those with no overtime work.
While the precise reason for relationship is unknown, the scientists speculated that those who work overtime are less likely to exercise,relax and unwind. Also,they tend to be type A personalities who don’t take time off when ill.