A psychology professor reviewed decades of research about having kids -- and he came to a depressing conclusion about marriage

ABC Lots of women look forward to motherhood – getting to know a tiny baby, raising a growing child, developing a relationship with a maturing son or daughter. All over the world, people believe that parenting is the most rewarding part of life. And it’s good that so many mothers treasure that bond with their child, because the transition to parenthood causes profound changes in a woman’s marriage and her overall happiness… and not for the better. Families usually welcome a baby to the m...