Laughter provides numerous physical and mental health benefits. Physically, laughter can boost immunity, decrease stress, relieve pain, relax muscles, and prevent heart disease. Mentally, laughter reduces anxiety and fear, relieves stress and improves mood, and provides a different perspective. Socially, laughter strengthens relationships, helps defuse conflict, boosts teamwork, and attracts others. The document examines the physiological and social effects of laughter and argues that laughter should be viewed as a form of medicine due to its health benefits.