Ha, ha, ha, hee, hee, hee.
Come on get silly and laugh with me.
Giggle gaggle, wiggle waggle, ho, ho, ho.
When you're feeling happy, let it show.
I got the sillies and when you get 'em,
You'll be silly like me.
I can't stop laughing as you can see.
(Lyrics from Barney & Friends, “Laugh with me!”)

Remember laughing so hard as a kid that your sides would nearly split open and tears would stream out of your eyes? When is the last time you have laughed like that as an adult? A Psycholog...