Video

How Our Brains React When We Hear a Joke

Like all reactions in your body, laughter is sent down from the brain. But, scientists aren't exactly sure what part it comes from exactly.

TestTube Plus is built for enthusiastic science fans seeking out comprehensive conversations on the geeky topics they love. Host Trace Dominguez digs beyond the usual scope to deliver details, developments and opinions on advanced topics like AI, string theory and Mars exploration. TestTube Plus is also offered as an audio podcast on iTunes.