Stuff You Should Know

Explore the origins of sleep paralysis and its connections to supernatural beings like succubus and incubus. Discover the role of fear and cultural interpretations in shaping the episode. Learn about various techniques to wake up from sleep paralysis and debunk the misconception that it is dangerous. Understand the phenomenon of sleep paralysis and its connection to vivid hallucinations and sleep disorders. Witness a grateful listener expressing their appreciation for the podcast.

Chairman Mao’s paranoia of a Soviet invasion led to hundreds of thousands of Beijing residents put to work for a decade building an 85-square-km underground city to serve as a massive bomb shelter. Instead it’s illegal underground housing today. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Fish fraud, misrepresenting a fish as a more expensive one, costs Americans $25 billion a year. And because less than 100 inspectors check for fraud in the US and everyone from wholesalers to sushi restaurants are free to rip off their customers. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Counting humans has been happening for a long, long time. It usually had to do with taxing them, but now census data can reveal a lot about a population and help satisfy its needs. Count us in for this episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

When animals are faced with scarce food in the winter, they have two choices to stay alive: migrate or hibernate. For hibernators, their bodies undergo some mind-boggling physiological changes in the coldest months. Could humans ever do it too? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

When the first Europeans landed on Rapa Nui, which they renamed Easter Island, they were puzzled by what happened there. Only a few thousand people lived there but there were signs of a massive civilization that once flourished. What happened there? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The soda we get instantly mixed at a fast-food joint owes a lot to a rich history going back to the Roman baths, that features drugs, diseases and explosions. Learn all about soda and soda fountains in this surprisingly interesting episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Polar bears are more than just lovable creatures that roam the ice in search of food. They're one of the most fascinating animals on planet Earth. Sadly, as ice shrinks, so does their habitat. Learn all about these huggable beasts in today's episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Believe it or not, we live in an ice age. The polar glaciers give it away. Those glaciers used to come clear down to New York. We now know the traces they left are everywhere if you know what to look for; it just took some Swiss peasants to figure it out. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Zika is all over the news these days, yet in America, people don't seem to be too concerned just yet. Some say it's a case of the media crying wolf. Others say it's because the risk factors for zika are limited. Learn all about the latest virus to take center stage in today's episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.