Social laughter is correlated with
an elevated pain threshold
Laughter Produces Endorphins,
“Laughter is very weird stuff, actually,” Dr. Dunbar said. “That’s why we got interested in it.” The simple muscular exertions involved in producing the familiar ha, ha, ha, trigger an increase in endorphins. Laughter contributes to group bonding and may have been important in the evolution of highly social humans.
In five sets of studies in the laboratory and one field study at comedy performances, Dr. Dunbar and colleagues tested resistance to pain both before and after bouts of social laughter. See: Social laughter is correlated with an elevated pain threshold
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