NEW YORK (Reuters Life!) - Fighting with your spouse can actually be good for your health with people who bottle it all up found to die earlier, a new study shows.

Researchers at the University of Michigan School of Public Health and its Psychology Department released preliminary findings after 17 years of following 192 couples.

The couples fell into four categories: where both partners expressed anger when they felt unfairly attacked, where neither partner expressed their anger, and one category each for where the wife suppressed her feelings and where the husband did so.

"I would say that if you don't express your feelings to your partner and tell them what the problem is when you're unfairly attacked, then you're in trouble," said Ernest Harburg, lead author of the study, in an interview.

The study found that those who kept their anger in were twice as likely to die earlier than those who don't.