Laughter

Ha, ha, ha! The average person laughs 17 times a day. When is the last time you laughed? Laughing is good for your body and brain!
When you laugh, your mouth opens. You smile, and you take in more air, which gives more oxygen to the brain. You make funny noises, and the beat of your heart speeds up. Best of all, you feel happy. Laughing can calm you down if you are feeling angry.
It is fun to laugh with people. We laugh at jokes, and we laugh at TV shows. We laugh at movies, at clowns, and at the funny things that animals do.
Some scientists say that dogs can laugh, too. They make a sound like panting when they are happy. What does your own laugh sound like?