People who are neurotic often have more difficulty with relationships and marriage. But if neurotic newlyweds have frequent sexual relations, their marital satisfaction is every bit as high as their less neurotic counterparts, according to a study in Social Psychological and Personality Science.
But sex in marriage seems to make people happy - other research has shown that sexual interactions improved the next day's mood. Russell and McNulty wanted to know if frequent sexual activity would erase the negative effects of neuroticism. They followed 72 newlywed couples over the first four years of their marriage; both spouses reported—separately and privately—on their marital satisfaction and sexual frequency every six months.