Hi, we've got some sleep, space, and singing science from Curiosity.com to help you get smarter in just a few minutes.

I'm Cody Gough.

And I'm Ashley Hamer.

Today you'll learn which is more important, sleep or exercise.

Why you've never seen a picture of the whole

Milky Way, a trick for falling asleep anytime, anywhere with a military tested

trick, and we'll answer a listener question about why your voice sounds different

when you hear a recording of yourself.

Let's set us for some curiosity.

If you went to bed late and your alarm goes off to go to a gym class, then which is worse?

Skipping your workout or losing an hour of sleep.

There are pros and cons to both,

so let's get into what scientific research has shown.

I know what I would do, sleep.

And I would probably work out.

But I think there are times when both of those are the right answer.

Sure, I can't wait to find out.

So first let's talk about the pros and cons of sleeping in.

One perk is that you'll have a better workout next time. That's based on a 2013 study that found

that people who slept longer each night ended up having longer, higher quality workouts.

But a different 2013 study found a pretty major drawback.

It found that skipping 30 minutes of sleep in favor of 30 minutes of moderate to heavy physical activity

...