By Kathryn Doyle (Reuters Health) – Marriage has been linked to health benefits, especially happy marriage, but when it comes to developing or controlling type 2 diabetes, marriage quality seems to have opposite effects on men and women, according to a U.S. study. For women, a happier marriage meant lower risk of developing diabetes over a five-year period, but for men, declining marriage quality was tied to lower risk of diabetes and better control of the condition for those who had it, researchers found. “The results for men suggesting that an increase in negative marital quality is related to lower risk of developing diabetes and higher chance of controlling diabetes are surprising,” said lead author Hui Liu of the department of sociology at Michigan State University in East Lansing.