We all know that screaming kids can make a household hell. Now scientists have backed that thought and have found the link between happy marriages and having kids.

Apparently, they have found that although couples who do not have children showed diminished marital quality over time, having a baby accelerates that deterioration.

A study in 2006 of 13,000 people found that parents are more depressed than non-parents.

So guys, I suggest you convince her that the pitter-patter of children's feet is not all rainbows and butterflies.

Source: Secret to marital bliss? Don't have kids [MSNBC]