A new study, published in Personality and Social Psychology Bulletin, discovered that signs of affection and casual chatting was responsible for long-term happiness. Nonetheless, Kashdan and his team believe their study makes an important contribution. Contextual moderators gender, relationship status, relationship closeness, and relationship length allowed for tests of conditions altering the link between sexuality and well-being. What mattered more was whether they described their relationship as more intimate. Getty Images Affection is the key to better life and relationship satisfaction, researchers found Married couples with kids were also quizzed about their sex life. They found that having sex on one day was associated with more positive mood states the following day, and also a greater feeling that life is meaningful. Another was of 74 couples recruited from the San Francisco area. These data provide evidence to support the continual consideration of sex in empirical work and theoretical models of elements that comprise healthy relationships and a good life. The only fly in the ointment for the well-being benefits of sex was that, specifically for participants who had only been in their current relationship for a short time, sex on one day was associated with more negative mood states the next. Todd Kashdan and his colleagues have attempted to correct this oversight with a three-week diary study, in which they looked at the associations between sex frequency and quality and not only positive mood, but also sense of meaning in life. If they did, the association between sex and next-day well-being gains was stronger.