Think leaving an unhappy marriage will make things better for you? Not so fast, as a new study says that being in a bad marriage is healthier than being divorced or single. The study investigated over 3,300 adults and found that married people had lower blood sugar than those who weren’t hitched. Previous research had found that marriage leads to many health benefits, but the researchers found that the quality of the relationship didn’t matter…both married men and women had 21% lower blood sugar than the others.