Send us a textProfessor Sophie Scott is a neuroscientist and Wellcome Trust Senior Fellow at University College London (UCL). Her research investigates the cognitive neuroscience of voices, speech and laughter.We talk about the medical benefits of laughter, tree-like connectors in the brain, and how best to rewire our most complex organ for an immortal world. (***Sophie Scott, CBE FMedSci FBA)Follow us on Instagram @deathlesspodAnd one more thing... How's your immortality going?