Insecure attachment may be detrimental to the sexual well-being of long-term couples

. A study has found that attachment insecurity affects sexual well-being in long-term couples. Among other things, it can shape people's motives for having sex. CONTENU - What motivates people in long-term relationships to have sex and how do those motives affect the emotions they experience during sex? Noémie Beaulieu, a doctoral candidate in the Department of Psychology at the University of Montreal, and her fellow researchers wanted to find out. They have analyzed the question through the lens of attachment theory. "Attachment theory postulates that three behavioral systems are essential to an optimal couple relationship: attachment, caregiving and sex," she explained. Construction of the attachment system starts at the beginning of life.