Selects: Does the body replace itself?

Deck your tidings and get your halls nice and gladded because it’s time for maybe the best episode of the year, where SYSK loosens our ties, puts on our smoking jackets and Santa hats and create holiday nostalgia in real time. Happy holidays, everybody!See omnystudio.com/listener for privacy information.

When your life is as outsized as the World’s Greatest Showman PT Barnum it’s pretty easy to - you know - gloss over the grimmer aspects when you turn it into an uplifting musical movie. But the way to understand a person is to look at them, warts and all. Josh and Chuck take a full accounting in this classic episode.See omnystudio.com/listener for privacy information.

The story of Doggerland is pretty fascinating. The idea is that mainland Europe and the UK were connected not only by a land bridge, but a place where plants, animals and even humans, thrived. See omnystudio.com/listener for privacy information.

At the end of WWII in Europe, one of the strangest battles of the war took place between German troops fighting alongside Americans and French to beat back an assault by the Nazi SS.See omnystudio.com/listener for privacy information.

Everybody’s always bagging on pessimists and telling everybody they should be more optimistic. Well, nuts to that! There are plenty of benefits from being a pessimist. Although being an optimist still wins in basically every category ☹See omnystudio.com/listener for privacy information.

Long ago, in a galaxy not so far away, George Lucas allowed the Star Wars Holiday Special to be made. What happened on the night of November 17, 1978 can never be fully explained, but we make our best effort in our annual special edition of SYSK. May the force be with us all.See omnystudio.com/listener for privacy information.

Ever since Cabbage Patch Kids came along in 1983, there’s been an annual holiday frenzy around one particular toy – the must-have Christmas toy of the year. But what makes a toy a must-have toy? Josh and Chuck investigate (and kick off the holidays).See omnystudio.com/listener for privacy information.

Do you love Play-Doh? Chuck and Josh certainly love to talk about it, from its interesting history as a wall cleaner, to its more scientific chemical properties. It's everything you ever wanted to know about the pliable children's toy.See omnystudio.com/listener for privacy information.

You may have played with a yo-yo before -- perhaps you've even walked the dog -- but do you know about the physics behind what makes a yo-yo sleep and wake up? Learn all about inertia, angular momentum and the history of the yo-yo in this episode of SYSK.See omnystudio.com/listener for privacy information.

Surprisingly, Cabbage Patch Kids have turned up on SYSK almost as much as the Nazis or Seinfeld. It’s finally time to dive all the way into CPKs, from their controversial origins to the Christmas craze of ‘83 to their alter egos, Garbage Pail Kids.See omnystudio.com/listener for privacy information.