Up Next
Back to Show
It's Okay to Be Smart
Why Do We Laugh?
Season 3
Episode 38
Laughing is a universal human behavior, one that transcends borders of language and culture. But it's also REALLY WEIRD. Why do we do it? The answer has less to do with humor than you might think
Sign up now for inspiring and thought-provoking media delivered straight to your inbox.
16:00
Just how big would a telescope need to be to actually see an alien world in detail?
26:19
Dire wolves are back—sort of.
16:53
The key enzyme behind photosynthesis isn’t actually all that great at its job.
16:40
The oldest rocks on Earth are more than just ancient—they’re time machines!
17:11
This is one of the weirdest mysteries of human evolution: Why do we have grandmas?
12:28
Why do some people taste music or hear colors? Let’s talk about synesthesia.
14:35
How a chemical in lizard spit inspired one of the most important medical advancements.
12:15
These diamond makers create one of the most amazing materials on Earth — from dead people.
11:20
Learn nature’s ultimate game of hide-and-seek, and the way to win this game is all in the brain.
11:17
Nature has had to come up with some crazy ways to survive winter. None are weirder than hibernation.
12:40
Political scientist Don Green joins Joe to figure out the complex psychological and social factors t
16:27
Why do certain sounds make some of us so upset?!