Everyone laughs to laugh! But why? What is the evolutionary purpose of laughter? How does laughter work on the mechanistic level? Why do we find things funny? There is a lot to discuss here from the standpoint of psychology, so let's dig in! Nature article on electric current stimulating laughter: https://www.nature.com/articles/35536 Script by Caitlyn Finton Animation by Ignacio Triana: https://www.youtube.com/c/Unraveled Watch the whole Psychology playlist: http://bit.ly/ProfDavePsych General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology/Genetics Tutorials: http://bit.ly/ProfDaveBio Anatomy & Physiology Tutorials: http://bit.ly/ProfDaveAnatPhys Biopsychology Tutorials: http://bit.ly/ProfDaveBiopsych Microbiology/Infectious Diseases Tutorials: http://bit.ly/ProfDaveMicrobio Pharmacology Tutorials: http://bit.ly/ProfDavePharma History of Drugs Videos: http://bit.ly/ProfDaveHistoryDrugs Immunology Tutorials: http://bit.ly/ProfDaveImmuno EMAIL► ProfessorDaveExplains@gmail.com PATREON► http://patreon.com/ProfessorDaveExplains Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience! Amazon: https://amzn.to/2HtNpVH Bookshop: https://bit.ly/39cKADM Barnes and Noble: https://bit.ly/3pUjmrn Book Depository: http://bit.ly/3aOVDlT