“…We consider reward laughter to be rewarding to the producer and recipient. 2 Producing laughter is inherently enjoyable (Herring, Burleson, Roberts, & Devine, 2011;Mauss, Levenson, McCarter, Wilhelm, & Gross, 2005) and down-regulates negative emotions (Bloch, Haase, & Levenson, 2014;Keltner & Bonanno, 1997;Yuan, McCarthy, Holley, & Levenson, 2010). Laughing triggers the release of opioids in the brain, providing direct evidence of its rewarding value (Dunbar et al, 2012;Manninen et al, 2017).…”