Is insomnia really a problem of modern life... or is the struggle for sleep older than you think? It's a common lament: this new world of smartphones and constant connectivity makes it nearly impossible to get enough sleep. But Shakespeare's characters were up all night, sleepwalking, and...

Why are we so judgemental about how others beautify themselves? Do you wear eyeliner? Dye your hair? Ever gone under a laser, needle, or knife? When it comes to beautification, how far do you think is too far? And why are there such strong moral overtones to our conversations about where to draw...

Why do we hate one another - and how can we stop? How and when does conflict metastasize into hatred? Dessa picks apart the science of hostility, with help from a criminologist who identifies the tipping point between prejudice and hate, and an Israeli psychologist who's studied one of the...