Laughter is a natural response to humor or joy, often characterized by a series of vocal sounds. It typically involves the contraction of facial muscles and can vary in intensity and duration. Laughter is a universal human experience, found in many cultures around the world, and is often associated with social bonding and communication. Research shows that laughter can have positive effects on physical and mental health. It can reduce stress, improve mood, and even boost the immune system. The act of laughing releases endorphins, which are chemicals in the brain that promote feelings of happiness and well-being.