Hi, we've got three stories 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 what makes someone a night owl or a morning person, some background on

string theory, and whether you should pull an all-nighter studying for a test.

Let's satisfy some curiosity.

Are you a morning person or a night owl? A recent study says either way, your sleep schedule might be written into your genes.

It's perfect for us to talk about Ashley. It really is because we're totally the opposite.

Absolutely the opposite. Yes. Now first let's get into some parameters.

In the world of sleep studies, night owls are people who go to bed after 11 PM and wake up after 8 a.m.

That's me.

Then there are Larks who get up before eight even on the weekends that's Ashley that's

for sure there are actually lots of different studies about how the two different sleep

schedules make for different brain types so our brains are different that's kind of. Podcast co-hosted by two different brain types.

But there's not a lot of research about what made those brains different in the first place.

Well for a study published in nature, researchers looked at the DNA of nearly 90,000 people who had submitted their genetic material to 23 and me,

and they discovered 15 genetic patterns that tended to be associated with being a lark.

Some of those patterns were close to other patterns that we know are associated with

circadian rhythms, but other patterns were found near genes like the ones

responsible for the eyes detecting light.

That made the evidence pretty clear that if you tend to wake up early, it's probably because your genes

are telling you so.

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