The Happiness Lab’s Dr. Laurie Santos brings together other Pushkin hosts to mark the International Day of Happiness. Revisionist History’s Malcolm Gladwell talks about the benefits of the misery of running in a Canadian winter. Dr. Maya Shankar from A Slight Change of Plans talks about quieting her mental chatter. And Cautionary Tales host Tim Harford surprises everyone with the happiness lessons to be learned from a colonoscopy.

Hear more of The Happiness Lab HERE.