Knock, knock.

Who's there?

Butter.

Butter who?

Butter be the one to tell the kids that April is National Humor Month.

It's the perfect opportunity to share a laugh with your kids.

There are tons of ways to get your family giggling.

Visit the library and check out a joke book. Search the internet for silly joke websites. Tell your kids funny stories from you were little. Email goofy pictures of your kids to their grandparents.

Have family movie night and watch a comedy.

Take a cure from your kids on this one. Children laugh 300 times a day compared to adults who only laugh 17 times a day.

But seriously, folks, studies have shown that laughing reduces stress, relaxes your muscles and is good for your heart. So get laughing!