Did you know that laughing is literally good for your health? It is. And that it can strengthen your immune system and therefore, your ability to fight disease? And that it can change your biochemistry for the better in seconds? Professor Sophie Scott is a British Neuroscientist, Researcher, Communication Expert and Stand-up Comedian whose research investigates the cognitive neuroscience of voices, speech and laughter particularly speech perception, speech production, vocal emotions and human communication. She also serves as director of UCL's Institute of Cognitive Neuroscience. Enjoy.