Stuff You Should Know

For thousands of years humankind has pursued the enhancement of sexual pleasure and performance through a plethora of medicines and practices -- but how many aphrodisiacs actually work? Listen and find out in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

International waters cover 71% of the Earth's surface, and a separate set of laws and regulations govern human activity on the seas. But who actually owns the oceans? Listen and find out in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

When a person has alien hand syndrome, his or her hand can move involuntarily, and seemingly of its own volition. Tune in and learn more about this misunderstood syndrome in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

When Allan Snyder discovered that transcranial magnetic stimulation produces strange cognitive changes, he believed he'd stumbled upon a "creativity-amplifying machine." Learn more about the real-life thinking cap in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Almost no one likes junk mail. It's seen as wasteful, unproductive and -- potentially -- harmful. Listen in as Josh and Chuck take a closer look at the nature and effects of junk mail in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Can a human being be scared to the point of sudden death? Listen in as Chuck and Josh explore the physiological possibilities behind dying of fright in this podcast from HowStuffWorks.com. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Since 1901, about 16 adventurous souls have gone over the falls in search of fame, usually in a barrel or sphere. Tune in as our resident experts take a look at the history of Niagara Falls in this podcast from HowStuffWorks. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

The practice of squatting is usually defined as camping on unused land or moving into an abandoned structure -- and it's more common than you might think. Tune in and learn more about squatting in this podcast from HowStuffWorks. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

What is it about Friday the 13th that gives us the collective willies? Discover the surprising roots of this common superstition -- and what paraskevidekatriaphobia means -- in this HowStuffWorks podcast. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

When it comes to survival, food and water are pretty much non-negotiable. How long can you go without them? What happens to your body when you cross that threshold? Lend your ear to this HowStuffWorks podcast to find out. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

If you've ever tried to say "toy boat" three times fast, you'll know that these two words can quickly turn into one tricky tongue twister. But why? Unravel the mysteries of tongue twisters and language in this HowStuffWorks podcast. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Three decades after the first reported manned lunar landing, some theorists still believe the landing was faked. Check in as Chuck and Josh take a look at the evidence on both sides of the debate in this podcast from HowStuffWorks. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

One-third of US cat owners are allergic to cats, resigning themselves to years of suffering and expense on their pet's behalf . Could hypoallergenic cats be the solution these allergic pet-lovers need? Tune in and learn more in this HowStuffWorks podcast. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Several conditions can cause comas, including brain tumors and overdoses. Tune in as the crew discusses the causes and treatments of comas -- including some miraculous recoveries -- in this HowStuffWorks podcast. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Moonshiners brew illegal alcohol, usually a liquor from corn. In the United States, this practice led to some surprising outcomes -- including the deveopment of NASCAR. Tune in to learn more about moonshine and racing in this HowStuffWorks podcast. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Recycling has come a long way since its debut -- and so have landfills. In this twofer HowStuffWorks podcast, discover the realities of modern recycling and find out why the world's largest landfill might be more aptly described as an "oceanfill." Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Redheads are supposedly fiery, passionate people, but is there any truth to these stereotypes? Find out what studies have to say about redheads -- and if they'll really go extinct soon -- in this HowStuffWorks podcast. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Urban explorers investigate abandoned structures such as hospitals, grocery stores, warehouses and underground systems. Tune into this HowStuffWorks podcast to learn more about the rules, legality and appeal of this fascinating hobby. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Body armor has used by bodyguards, celebrities and soldiers for thousands of years. Tune into this HowStuffWorks podcast to learn how the constant innovation in weaponry has led to a similar evolution in defense and armor. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.

Is the idea of possession a misunderstanding of physiological and psychological conditions, or has science failed to account for unknown, legitimate factors? Learn whether exorcism and psychology are mutually exclusive in this podcast from HowStuffWorks. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.