Hi, you're about to get smarter in just a few minutes with Curiosity Daily from Discovery.

Time flies when you're learning Superpool stuff.

I'm Nate.

And I'm Callie. If you're dropping in for the first time

welcome to curiosity where we aim to blow your mind by helping you to grow your mind.

If you're a loyal listener, welcome back. Today you'll learn about a new discovery

that turns our understanding of hunter-gatherer diets on its head,

the effect of self-checkout on our sense of loyalty to grocery stores, and some good news

about the majestic Emperor Penguin.

Without further I do, let's satisfy some curiosity.

Over the past few decades, there have been, I don't know,

maybe a million fad diets based around the idea

that our bodies evolved to eat certain things and not to eat other things.

One of the biggest and most popular diets is called the paleo diet.

Yeah, okay, that's actually been a big deal for a long time.

I think my brother was on it for a little while.

As I understand it, the idea is basically high protein and no carbs. So you eat what our hunter-gatherer ancestors ate.

It's kind of something like that. Yeah, that's the basic gist.

Palio is short for Paleolithic because advocates say that our bodies

were never meant to live off of the kind of food produced in an agricultural

system like grains and carbs.

Hunter-gathere, as they say, lived by eating mostly the meat they were able to hunt,

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