fCAT: innovative peace leadership: Childless couples are happier with their relationships - New research from Open University in the UK finds that couples without children are more satisfied with their relationships than couples with kids. In a study of more than 5,000 adults, findings showed that childless couples have happier marriages and feel more valued in their relationships, reports The Guardian. But researchers also found that women without children were the least happy with their lives overall, whereas mothers were happier than any other group, even if they had troubles in their relationships. Yet fathers were twice as likely as mothers to report a lack of sexual intimacy as the biggest problem in their relationship. Findings also showed that important factors in keeping a relationship healthy included saying thank you and giving compliments.