Stuff You Should Know

A majority of human cultures practice kissing in one form or another. But why do we kiss? Is the behavior instinctive or learned? In this episode, amateur philematologists Josh and Chuck take a look at the biology, sociology and pyschology of kissing.

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Over a billion people do not have access to clean water, and many die from water-born diseases. With 6,000 people dying each day, this situation is increasingly urgent. Could Lifestraw filters resolve this crisis? Tune in and find out.

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It's no secret that human beings have an obsession with innovation -- but has our species already found every good idea? As Josh and Chuck break down the continuing search for the next great idea, they touch on everything from hand tools to cancer cures.

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These days, alcoholics and other people suffering from addictions are often sent to rehabilitation centers to kick their habit. But how long has rehab been around, and how does it work? Listen in as Chuck and Josh present the fascinating process of rehab.

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Prohibition was a 13-year period in American history when selling or producing alcohol was illegal. What led to this astonishing development? Why did it end? Josh and Chuck take a look at Prohibition's fascinating history in this episode.

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Modern scientists have extensively researched addicts and the things they abuse, but we still don't understand everything about the nature of addiction. So how does it work? Tune in to learn more about addiction (and why you can't kick your SYSK habit).

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When you think of animal migrations, you probably picture thousands of animals thundering across the savannah. But where are they going, and why? Josh and Chuck explain why and how animals migrate in this episode.

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In this spooky episode of Stuff You Should Know, Josh and Chuck get you ready for Halloween as they narrate H.P. Lovecraft's creepy tale "The Tomb." Tune in to learn more...if you dare!

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All of us have experienced the feeling of jealousy at some point or another. But why do we get jealous? Are women really more jealous than men? Josh and Chuck get to the bottom of jealousy in this episode.

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Hallucinogenic drugs are currently illegal, but they were once commonly used in psychological treatment. In this episode, Josh and Chuck discuss the rise and fall of psychedelics in treating mood disorders -- and why they're starting to gain favor again.

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