Radio Lab: Laughter
We all laugh. But why? If you look closely, you'll find that humor has very little to do with it. This episode explored the power of laughter to calm us, bond us to one another, or to spread... like a virus. Along the way, they tickled some rats, listened in on a baby's first laugh, taledk to a group of professional laughers, and traveled to Tanzania to investigate an outbreak of contagious laughter.