Updated

Marriage has been shown, through research, to be an unending source of joy, a Harvard professor said at an Australian conference this week.

But introduce children into the relationship and that joy may plummet, according to a report from the Australian Associated Press.

Despite the belief that children are the apples of our eyes, they actually can have a negative influence on marriages, according to the report. And more kids equals more sadness.

Click here for the full story