Running The Laugh Track

My favorite message of the movie Monsters, Inc. is the part about the power of a child's laughter being able to energize whole city blocks.  If that were true, the bug is currently supplying the state of California with an abundance of free, renewable energy.

Scarcely a phone call goes by without her full-on belly laughs filling up the background.  I swear I can feel the electricity all the way over here on the other side of the country.

She laughs at a lot.  From her holding up a WubbaNub to the light, to rolling around on the bed.

She's also talking more, and with inflection.  With only one tooth, that must be quite a sight, too.  Apparently, she can also tell when conversation at the dinner table isn't focusing on her.  So, she pulls focus with her banshee calls.

Is there such a thing as a baby laughing too much?  Is it, like, a symptom...  of something?  I prefer to think of it as a frequent reminder to focus on the joyful moments of life and get all you can out of them.