People love to laugh, and on average, an adult laughs about 17 times a day. It feels so natural to us, but the interesting part is that humans are one of the few species that actually laugh. Laughter isn’t just a reaction—it’s a complex response that involves the same skills we use when solving problems.

Laughter happens as a reaction to something funny. It has two main parts: certain facial expressions and the production of sound. When we laugh, our brain makes us do both at the same time. And when we laugh really hard, it affects multiple parts of our body, even our arms, legs, and core muscles.

Laughter also has a social role. It’s a way of showing others that we want to connect with them. Many scientists believe that laughter exists to help build and strengthen relationships. It happens when people feel comfortable and free, and the more they laugh together, the stronger their bond becomes.