Stuff You Should Know

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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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