Did the CIA test LSD on unsuspecting Americans?

You probably did it around 70 times last year, yet you probably don't understand the psychological and physiological processes at work when you cried. Don't feel bad - no one does. Join Chuck and Josh as they poke around your tear ducts in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

28 Feb 201239min

Avoiding food for religious or health reasons has been around for millennia. But while God may appreciate the sacrifice, how does it affect the body? Join Josh and Chuck to find if fasting actually can be healthy or if it's as bad an idea as it sounds. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

23 Feb 201234min

In the 400th episode of Stuff You Should Know, Josh and Chuck take a trip through the morgue and look over the shoulders of the often controversial coroners and medical examiners that open cadavers to determine how someone died. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

16 Feb 201249min

Few numbers have as storied a past as zero. Even fewer have had as great an impact on our ability to understand our universe. Yet zero is a relatively recent arrival in math. Find out all about this surprisingly fascinating number with Chuck and Josh. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

14 Feb 201230min

Coral reefs are the largest organic structures on Earth, yet they're created through a symbiotic relationship between creatures about 3 millimeters long. Learn more about the the world's coral reefs (and how to protect them) in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

9 Feb 201236min

There aren't many criminal pursuits that are as storied as pickpocketing, and some people fondly reminisce over its heyday. Learn why some consider pickpocketing an art form, how to protect yourself from this art and more in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

7 Feb 201232min

Floods happen when more water is introduced to an area than can be quickly removed. That's about it, but there's more to floods, what causes them and the havoc they can wreak. Join Josh and Chuck in this super-saturated episode of Stuff You Should Know. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

26 Jan 201232min

Despite worldwide prohibitions, slavery still exists. Slaves are forced or coerced into prostitution or made to work in deplorable factory conditions. Yet there's still debate over how widespread the problem is. Learn about modern slavery in this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

24 Jan 201234min