10 Signs You're Not Happy

Snapping at your best friend and zoning out in front of the TV for hours might be more than a case of the Mondays. If you can't sleep and you're consumed by stress, you might be unhappy.

Keeping Up With the Joneses' Sex Lives

Do you know how often your friends and neighbors are having sex? If you're having sex frequently, finding out those intimate details could translate to a happiness boost, says a new study out of the University of Colorado at Boulder. Sort of...

Multiple studies indicate that people with sisters seem to be happier than people with brothers -- but what does this mean, and could it be true? Join Molly and Cristen as they explore the relationship between your siblings' gender and your happiness.

An objective measure of happiness is difficult to come by, but researchers say there are definite trends. Sometimes men are happier, and sometimes women are. Explore the science of happiness in this podcast from HowStuffWorks.com.