Researchers love to praise marriage as a health-boost (they clearly were never stuck in a miserable marriage.) And the rest of us tend to think that a marriage is better than no marriage at all. And while all the stats and studies love to tout the benefits of being hitched, we often forget that it's not about the marriage as much as it is the quality of the marriage. There's been plenty of science to prove that an unhappy, conflict-riddled marriage can be worse for you health-wise than if you were single. And if you hadn't broken up, you would still be at an increased risk for heart disease, cancer, arthritis, diabetes and depression.