From the brains behind brains on, this is the moment of um.

Moment of um.

Moment of um comes to you from APM studios. I'm Anna Goldfield.

Good morning. I just woke up from a solid eight hours of snoozing. I was having a dream about roller skating on the moon, and then I woke up and realized I wasn't doing sweet stunts at one-sixth the Earth's gravity.

Ugh, ugh!

My eyes have all this gunk in the corners.

Blah! How did that happen?

It's not like I rolled around and gunk and goop while I was sleeping.

Did my body actually make that?

I know my eyes aren't the only ones collecting goop overnight because we got a great question about

sleepy goobers from a listener.

Hi, my name is Xavier from Sydney Australia.

My question is, what producers sleep, the goo in your eyes, over in the is just regular old eye discharge.

It's made of a variety of different things, including the normal secretions of the eye,

that is mucous oil and water, as well as accumulated debris like dead skin cells and germs. In this sense it's the same as a

booger because it's basically just dried out mucous and debris.

Hello, I'm Sosha and Soshaevpur and I'm one of the eye doctors at Yale Eye Center.

Like the skin and the nose, the eye is exposed to the air and all the junk in it.

It's bombarded by everything including dirt, flower pollen, germs, even our own skin and eyelashes.

To protect itself, the eye produces tears, which again are made of water, mucous,

and oil, and every time we blink, the eyelids help spread tear over the eye to wash off all the bad stuff that lands and to keep the eye well hydrated and healthy.

Much like a window washer, the eyelids scrub everything as far away as they can from the eye, mainly into the corners of the eye,

...