Why Do We Laugh?

Gresham College

November 12

Laughter is an incredibly powerful and yet mysterious emotion. We laugh with delight, but also surprise. We laugh at jokes, but also at embarrassment. Why? What subconscious signal is laughter intended to display? Why do we laugh when someone tickles us and what should we make of the fact that rodents do it too? And why is it that people’s sense of humour differs wildly and yet some drugs can send us all into fits of the giggles, even if there is nothing to laugh at?