This podcast episode delves into the multifaceted world of laughter, exploring its profound impact and diverse forms. Starting with Rosie's one-woman show, "She Who Laughs Last," the episode showcases laughter's universal language and ability to connect people. Through expert interviews and interactive games, the episode unveils the physiological and evolutionary aspects of laughter, revealing its prevalence in the animal kingdom and its role in stress reduction and well-being. It highlights the development of laughter recognition over time and the distinction between genuine and posed laughter, showcasing the significance of this nonverbal communication in our social interactions.