"Studies show that in a phenomenon called "emotional contagion" we unconsciously catch emotions from other people - whether good moods or bad ones. Taking time to be silly means that we're infecting one another with good cheer, and people who enjoy silliness are one third more likely to be happy." [Source: The Happiness Project by Gretchen Rubin. Check out her blog at The Happiness Project.]
So, grab your kids and have a dance party, run like the wind on a home made race track, spin circles in a full skirt, and look for the silver lining!