The serious science of toilet humour.
One viral video might leave you in stitches; another leaves you cold. Psychology researchers have worked out several theories of humor to explain why.
Disparagement humor makes a punchline out of a marginalized group. Racist or sexist jokes, for instance, aren't just harmless fun – psychologists find they can foster discrimination.
No longer dismissed as an undesirable negative trait to be avoided, humor is having a heyday among experimental psychologists.