Laughter has a positive impact on physical health by reducing stress, enhancing immune function, and lowering symptoms of depression and anxiety. Regular laughter can lead to lower levels of stress hormones, promoting relaxation and improving overall mood. It can also trigger the release of endorphins, the body's natural feel-good chemicals, which foster a sense of well-being. Moreover, laughter engages various muscle groups, which can provide a light aerobic exercise effect, contributing to better cardiovascular health and resilience against illness.