Stuff You Should Know

A Roman senator once said, "Mankind can live without gold, but not without salt." Right he was. The human body needs salt so much we have developed a taste for it specifically. But too much salt can be toxic. Learn about salt's role in human history and how we get it from the Earth in this classic episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Getting the rain and melted snow from upstate NY into the taps of every NYC resident and business is one of the great feats of engineering. Does it taste great and make perfect bagels and pizza crust? Sources say yes! Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Back in 1982, Key West seceded from the United States. Don’t believe us? It’s true! Just listen to the episode, will you? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Augmented reality adds a digital layer over the real world and soon it will revolutionize how we live. Ultra-tailored information will be everywhere we look, creating a richer, more personalized experience in everything from surgery to walking down the street. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Hallucinogenic drugs are currently illegal, but they were once commonly used in psychological treatment. In this classic episode, Josh and Chuck discuss the rise and fall of psychedelics in treating mood disorders -- and why they're starting to gain favor again. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

What is Cockney Rhyming Slang? It's complicated and its origins are unclear. Learn everything we know about it today. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Sure, you could train for months to finish a marathon, but why not make things interesting? Ironman triathlons add a 2.4-mile swim and a 112-mile bike race before the marathon leg. It’s as grueling as it sounds. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Paternity testing. It wasn't science for many years, yet they still tried to do it. Learn all about it in 12 minutes. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Occasional bad breath is one thing, halitosis is another. Or is it? From its odd origins as a marketing ploy to modern weight loss diets that can induce this embarrassing condition, you can learn all about bad breath in this classic episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Josh and Chuck chose a truly unsettling story by one of the greatest science fiction authors of all time – Philip K Dick. Join the boys as they read “The Hanging Stranger,” complete with scary sound effects by the Extraordinary Jeri! Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Join us today as we read three short horror selections from Ambrose Bierce. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

We aren’t exactly sure who invented trick-or-treating – kids who realized they could extort adults for candy, or adults who bought off kids in exchange for laying off pranks? The bigger question is: Will trick-or-treating survive the 21st century? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Ever since the Egyptians, humans have been evolving toward haunted house attractions. The level of sophistication in the scares and gore effects continues to rise over time, but the purpose remains the same: to scare the pants off you. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

A fascinating thing about Americans is that we can disagree on anything. Such is the case with historic districts – areas of historic importance protected by local laws. Seems innocuous, but are they also to blame for the affordable housing crisis? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

In 1994 the body of a woman who died in a California ER somehow became toxic and sickened 24 people. To this day, no one is sure what happened. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Subpoenas are all the rage. But what do they even mean if someone can just ignore it? Learn this and a lot more in today's episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

In the late 1980s, the United States experienced a "Satanic Panic," leading parents to fear for the safety of their children. But were there any real examples of Satanic ritual abuse? Find out this and more in this classic episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

A rash of UFO sightings kicks off a new spike in America’s UFO fever and new headaches for the Air Force, which continues to reluctantly investigate. After becoming a laughingstock for its limp explanations, the Air Force looks for an exit from the UFO biz. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Ambrose Bierce was a journalist and writer of short stories. He also disappeared rather mysteriously. Listen in and learn of the various theories on what happened to him. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Black boxes are designed to be the only survivor of plane crashes so they can live to tell the tale of what went wrong to prevent future accidents. Sit in with Josh and Chuck and learn about how these grim devices are made, how they're tested and the tales they've told, in this classic episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Who wants fresh honey? We do! Learn all about the ancient art of beekeeping today. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The Devil's Den is the sight of one of the bloodiest battles of the Civil War. Is it haunted? Nope. But still creepy. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

In the 60s, psychology expanded from exploring inside the mind to exploring the inside of buildings. Environmental psychology looks at how our spaces affect us – from how a busy mall can create a panic attack to how looking at nature can speed recovery from surgery. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

PEZ began in Vienna as a mint meant to help people quit smoking. But once American kids got ahold of it, the candy took off and a symbol of childhood - and healthy secondary market among collectors - was born. Explore Pez history and culture with Josh and Chuck in this classic episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Freedom Schools were set up in Mississippi in the heart of the Civil Rights Movement, with the aim of giving young black school children agency and a future. They remain one of the more inspiring and progressive programs in American History, yet so few know about them. We're hoping to change that. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

How did these two wonderful strangers meet up and become best friends? The answers lie within today's short stuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

If you grew up in the 1980s, then you know who the Guardian Angels are. If you don't then you're in for quite a story. Listen in! Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

On May 4, 1970, four days of anti-war protests at Kent State University in Ohio culminated in the unthinkable when Ohio guardsmen opened fire on protesters, killing four students. How could this tragedy take place? Learn more in this classic episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Josh and Chuck dive into the world of paraphilias so you can get the skinny in 45 minutes or less. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

What happened to the Lost Colonists who disappeared from Roanoke Island in the 1580s remains a mystery to this day. But it’s possible a carved stone a man vacationing in North Carolina found in the 1930s may have solved it – if the stone isn’t a hoax. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Sand, we’re beginning to realize, is a non-renewable resource - and we are consuming it at a voracious pace. We use it in every construction project around the world and to create new land. And we’re wrecking the ecosystems we mine sand from. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Do you know that hulking refrigerator in your kitchen emits CO2 thanks to the electricity it uses each year? It's a comparatively small amount, in truth, but enough that some people have foresworn their fridge and adopted a life without one. See how they do it in this classic episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Wait! This is actually a good episode! It turns out that America’s 48,000 miles of superhighways – possibly the largest civil works project in the history of humanity – may have also ruined what made America a cool place. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Scurvy seems like a terrible way to go: Your gums swell so you can’t eat, your teeth fall out and your brain and/or heart hemorrhages. Fortunately, all you need is an orange to cure you. Or some – blech – broccoli. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

If you live in the Northeastern U.S. then you may know someone who has had Lyme disease. But it's spreading all over the country and parts of the world. Learn all about this tick-borne disease today. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Whether it's oral, scrawled in blood or signed on a deathbed everyone should have a will. But how do they actually work? Join Chuck and Josh as they explain that "of sound mind" thing in this classic episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Special effects have been around since the first movies. In fact, the techniques the earliest filmmakers created are still around today, we just use computers to do them faster and cheaper. Put on your beret and get ready for SYSK film class. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Oh, the papasan. What a chair! But where did it come from? And what does the name mean? The answers lie within. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Every year Congress decides how the federal government will spend money. Simple enough, but in practice politics tend to mess it up. Sometimes it gets so messy the budget doesn’t get passed and parts of the government shut down. Then the hurting begins. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Although most people who've used Ouija boards don't think they're communicating with the beyond, there is something mysterious about how it works. Learn the ins and outs of the popular parlor game that sprang directly from the 19th-century spiritualism movement in this classic episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

MSG got a bad rap in the 70s and 80s. But what is it exactly and how bad is it for you? The answers to those questions lie within. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Barbed wire changed the Western US as much as the railroad and the six-shooter. Before barbed wire arrived, the West was free and open; after, the West became concentrated in the hands of a few big ranchers. No wonder it was called “devil’s rope.” Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Any movie featuring a deranged killer who’s perversely devoted to his mother and makes things out of human skin has a real-life person named Ed Gein to thank for inspiration. He was Buffalo Bill, Norman Bates, and Leatherface all rolled into one. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Icebergs: floating chunks of ice. True, but whoa there. Scientists are learning that there's a lot more to icebergs. Appropriately enough, we've only come to understand the tip of the iceberg and recent research shows there's plenty more to uncover. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Rubik's Cubes. Ronald Reagan. Jerry Falwell. Just Say No. One of these things was awesome. Take a guess and hop on board the 80s train. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Did you know there are airline codes for pilots and flight attendants? And some of them have to do with dead bodies on board? Learn all about it today! Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Punk rock really needs about 10 episodes to do it justice, but we'll try and tackle anyway. Learn all about this movement right now. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Sleep behaviors are pretty fascinating. Some people snore, some grind their teeth -- and some take a little stroll, or perhaps a drive. In this classic episode, Josh and Chuck investigate how sleepwalking, or somnambulism, works. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Ventriloquism – where a skilled performer “throws” their voice, making it seem like a dummy on their knee is talking – has taken a long, circuitous road from early prophets, to witches, then finally to the stage. Get to the bottom of this uncanny trick. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.