蜜芽传媒

Giggling fits are something all of us have experienced. Now two British schools have teamed up with academics from Reading University to research what causes so-called "emotional contagion" and the benefits derived from giggling. Julia Harrington, head teacher of one of the schools, Queen Anne's in Caversham, has been speaking to Dan Damon.

(Image: students giggling. Photo by Ed Jones/AFP/Getty Images)