Science has shown us in the past that being married has it perks. Those people are more likely to be healthier, and some folks even attribute longevity to their marital status. But a new study shows that being in a happy marriage can keep your blood pressure in check too. Otherwise, you're healthier off being single according to researchers!

Couples who reported a low level of satisfaction, meaning that their relationship could be turbulent, had a higher systolic blood pressure reading than couples that were happy. Those people in a stressed marriage were shown to have blood pressure approaching an unhealthy level.

But a good level of satisfaction helped the blood pressure of those other couples. This seems like common sense to some people, but it's interesting to observe concrete feedback regarding the heart health of stressed individuals. Of course, there's also that one guy who lived to 100 allegedly thanks to staying single (if only he knew that couples who fight together live longer together).