Laughter is how you react to something funny.  Laughter can be caused by a funny joke, T.V shows, movies, or anything that seems funny.   An example of a funny joke is, “I’m on a seafood diet.  I see food and eat it.”  Believe it or not laughing is actually important for your health.  You should at least be laughing once a day.  So after this story I hope you would be laughing at something funny.