To Be Happy, Neurotic Couples Need More Sex Study finds that it negates the 'happiness deficit' By Aaron Cowan, Newser User Posted Dec 8, 2010 11:22 PM CST Promoted on Newser Dec 9, 2010 12:24 PM CST 2 comments Comments A new study says that for neurotic couples, sex helps. (Shutterstock) (User Submitted) – Neurotic couples struggle with negative emotions and mood swings, but new findings say they're just as happy with their marriages as non-neurotic couples when sex is frequent. The sex negated the "happiness deficit," say researchers. For non-neurotic couples, sex was less critical for happiness, reports LiveScience. Researchers say the finding is notable because neurotic couples tend to divorce more frequently. "High levels of neuroticism are more strongly associated with bad marital outcomes than any other personality factor," says one. So how much is frequent? In the study, married couples, on average, had sex once a week for the first six months, and around three times a month by the fourth year.