Psychologist Laurie Santos created a college course to teach students how to use what scientific research has discovered about what makes us happy and why. It became the most popular class in the 300 year history of Yale.
Porochista Khakpour has been fighting a mystery illness for as long as she can remember. Eventually, she got a diagnosis — late-stage Lyme disease — but a diagnosis hasn't given her much resolution.
Lynne Segal, the British feminist icon, has a theory about happiness: it's both personal and political. She advocates radical happiness — finding joy in collective action.