Stuff You Should Know

In this week's SYSK Select episode, there is a lot of debate about whether pre-agricultural humans existed in a more harmonious state than we do today. Did we slip out of Eden when we began to build large scale societies and pay the price for technological advancement by suffering increased violence? Or is it possible that the most peaceful time in history is right now? Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Probably all beaches were nude early on, but as society developed and body shame became all the rage, people started wearing bathing suits. Some, though, liked the way it was before. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

In the 60s, Congress worried the White House was operating too much in secret and passed the Freedom Of Information Act, opening the government to public questioning. It has been an ongoing struggle to pry those secrets loose ever since. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

In this week's SYSK Select episode, there's an emerging field in health care called medical ecology that's concerned with understanding how the 100 trillion microbes living inside us keep us healthy. The field's first breakthrough is the fecal transplant, taking poop from a healthy person and putting it into the gut of a sick person. It's a real thing and it actually works. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

Mixing wax with pigment is something artists have been doing since DaVinci. These little implements would later go on to be called crayons and gained popularity among the elementary school set. Learn all about crayons in today's episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

They survived the extinction that wiped out the dinosaurs, but unfortunately frogs seem to be no match for humans and are losing species in droves. This is not good for anyone. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

In this week's SYSK Select episode, one of the fields of forensic investigation, handwriting analysis is based on the principle of uniqueness - that each person writes in their own peculiar way. Learn about this interesting area of crime fighting and how it's worked to advance itself as a real science. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

The U.S. Secret Service began after a mandate from President Lincoln called for a service to combat counterfeiters. Since then, they have become more well known as the agency that guards and protects the president and the first family, along with that of former presidents. Learn all about the ins and outs of the this not so secret service in today's episode. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

There are people who walk among us who seem normal, maybe even more charming or intelligent than average, yet they hide disturbing and at times dangerous personalities behind what one researcher called a 'mask of sanity.' Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

In this week's SYSK Select, what you hear is not a test, instead it's Chuck and Josh discussing the cultural history of the Hip-Hop movement. Born out of the South Bronx, by way of Jamaica, Hip-Hop culture grew up suddenly as DJs learned to use two turntables at once. Check out this episode of Stuff You Should Know to learn about the origins and evolution of Hip-Hop. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.