Sure, it’s fun to share a good laugh. But did you know it can actually improve your health? It’s true: laughter is strong medicine. It draws people together in ways that trigger healthy physical and emotional changes in the body. Laughter strengthens your immune system, boosts mood, diminishes pain, and protects you from the damaging effects of stress. As children, we used to laugh hundreds of times a day, but as adults life tends to be more serious and laughter more infrequent.