From the brains behind brains on, this is The Moment of Um.

Um.

Moment of Um comes to you from APM Studios.

Um.

Oh, hey! It's one of my favorite coworkers slash brains on besties, Anna Wagle.

Hey, Ruby. Sorry, I'm a little groggy this morning. I had such intense dreams last night.

Wait, no way. Me too. Like, in one of them, I could fly, but it was only if I was holding my magic corn on the cob.

Wait, I have a recurring dream about a magic corn on the cob, and I flew in my dream last night, too.

I crashed landed on a karaoke party, and the magic corn was singing Diana Ross. Freaky. After that, I dreamt I was apple

picking with Sandin, but as soon as I touched an apple, it turned into a tooth. In my dream, I lost a tooth

when I took a bite of apple pie. This is too weird.

Why are we dreaming about all the same things?

It's so weird.

Lots of people I know also say that they sometimes dream about flying or teeth.

What's the deal?

Adeline was wondering the same thing.

Why do people sometimes share similar dreams?

Dreams are built on memories. My name is Tori Nielsen, and I am the director of the dream

and nightmare laboratory affiliated with the University of Montreal. This is where dreams

draw all of their raw materials. They pull memories out of your past, sometimes out of your distant past, sometimes out of your recent past, and then they sort of stitch them together into something that seems new.

But of course, anyone who dreams will recognize places and people and actions and so forth in their dreams.

So they're built on memories and there are certain kinds of memories that we all have in common,

...