Happy Sunday. We've got three stories from Curiosity.com, plus the answer to a question from a curious listener like you to help you get smarter in just a few minutes. I'm Cody Gough.

And I'm Ashley Hamer. Today you'll learn why running might actually be good for your knees, why Buzz Aldrin

claimed $33 in travel expenses for his trip to the moon, and two traits that determine how likely

you are to cheat on your partner. We'll also get into left and right hand and eye dominance

and explain how they're related.

What satisfy some curiosity?

You've probably heard that running is bad for your knees,

but a growing body of research suggests that running might not only be fine for your knees, it might actually improve your knee health.

Do you think you have healthy knees then? I have super healthy knees. This is my biggest pet peeve. My response to this is always to change the subject so people never know how I actually feel but whenever someone tells me, oh I used to run but then it was just terrible for my knees so I stopped I want to you just

can't handle it I can't handle it why don't you educate them I'm a very well

actually kind of person and I try to stop from doing that in social situations

because people don't really appreciate it. That's tricky to be a science

educator but then also want to have friends. That's the trick.

Okay, that's fair.

That's fair.

Thank goodness we've got this podcast for an outlet.

Oh, really?

It helps a lot.

Well, for a study published in 2016

in the European Journal of Applied Physiology,

researchers had male and female runners

either run on a treadmill for 30 minutes

...