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so smart to get 10% off of your first purchase. Welcome to the You Are Not So Smart Podcast. episode 100.

100! 100. Back in episode 32 of this podcast about three years ago we covered a psychological concept called ego depletion.

Now to catch you up on what that is it's a pretty old model in psychology that

categorizes what we call willpower as a finite and depleable resource. If you stay your hand

from the cookie jar for too long, you eventually give out. You give in. You wear out.

You lose the psychological energy to stay your hand any longer.

Or if you don't give into the cookies, you're more likely to give up on some other task

later on that would have required the willpower that you've spent trying to not eat the cookies.

Now I mentioned cookies so much because that's how ego depletion was discovered.

In 1998, psychologist Roy Balmeister and his colleagues

had subjects skip a meal, and then, hungry,

sit in front of a plate of cookies and then they were told don't you eat

those cookies.

So there was a little toaster oven or something in the lab and they would bake the cookies there and there would be this delicious smell of fresh baked cookies around. That's journalist Dan Inber who wrote an article about ego depletion for Slate magazine.

And then there'd be a plate of red and white radishes.

That's right, radishes. Each person sat down in front of a plate of

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