Hi, I'm David Eagleman. I have a new podcast called Inner Cosmos on I Heart. I'm going to explore

the relationship between our brains and our experiences by tackling unusual questions. Like,

can we create new senses for humans? So join me weekly to uncover how your brain

steers your behavior, your perception, and your reality. Listen to Inner Cosmos with David Eagleman.

On the I Heart Radio app Apple Podcasts or wherever you get your podcasts.

Last season, millions tuned into the betrayal podcast to hear a shocking story of deception.

I'm Andrea Gunning and now we're sharing an all-new story of betrayal.

Ashley Litten was helping her husband set up a business fan mail count when she discovered a

terrible secret. I saw a hidden folder and I opened it with the help that I just see.

Listen to season two of betrayal on the I Heart Radio app Apple Podcasts or wherever you get your

podcasts. Welcome to Stuff You Should Know, a production of I Heart Radio.

Hey and welcome to the podcast. I'm Josh and Chuck Cier-2 and Jerry's here too and this is Stuff

You Should Know about the history of exercising. I found this super fascinating. Yeah, it is

pretty fascinating. I don't know why. It just grabbed me and I guess it grabbed me earlier because

it was my idea because I think I don't know. Maybe I'd seen Anchorman and they made the Yogging

joke and then I remembered hearing that, you know, exercise is sort of new if you look at not only

the history of humans but the history of America. It's only been around for, you know, 50-ish years,

60 maybe. Yeah, I mean in ancient times they were pretty into fitness but then it kind of dropped

off for a couple thousand years and we picked it up again in 1960 roughly at the very least the

decade of the 60s and like you said specifically in America and the United States I should say.

Yeah. So should we do it? Yeah. The whole thing is that the first half of the 20th century,

it's not like there weren't people exercising right? They were out there. They were just

...