Traditional wedding vows often include the promise to be by your spouse’s side "in sickness and in health, 'til death do you part." Or something similar. Well, if you are in a bad marriage, the death part may come sooner than expected. A new study finds that a stressful marriage may be unhealthy, especially for men. In fact, for some people it may be as bad as smoking. This finding seems to be opposite of many other studies that say marriage improves health. For example, one British study found that being married improved a person’s chances of surviving a heart attack. The researchers said married people had shorter hospital stays. And experts at Harvard Medical School write on their website that married people live longer, have fewer strokes and heart attacks, have a lower chance of becoming depressed, are less likely to have advanced cancer at the time of diagnosis and more likely to survive cancer for a longer period of time, and survive a major operation more often.