Hello and welcome back to the Curious Kid Podcast.

How many people out there have listened to each and every episode of Curious Kid Podcast?

If you have, you've listened to us for about four total days.

That's right. If you listen to every episode without interruption, it would take

you more than four full days to listen to the entire Curious Kid Podcast catalog. If you've

listened to everything, you might also remember an episode we released a really long time ago

in episode three of Curious Kid Podcast.

It was called Curious About Sneezing.

It was our first episode with a guest.

Well, the topic we're covering this week goes well with that episode, and you're about to find out why.

Double Mail Back! Double mailback!

Double mailbag!

My five-year-old son Maddox and I wanted to let you know that we really enjoy listening

to your episodes because we learn something new every time.

Right now, we're binging the episodes every time we get in the car

as we just discovered your podcast last year.

It's been wonderful for our summer vacation road trips.

Thank you.

Maddox wants you to know that he's curious about coughing,

brakes in vehicles, and crocodiles. Thanks, Anya, and

Maddox. Hello, Jacob Olivia and Noah. My son Oliver is curious about coughing. We listens to

your episode about asthma, but would like to learn more about the physical reactions that involve

...