Hi, we're here from Curiosity.com to help you get smarter in just a few minutes.

I'm Cody Gough.

And I'm Ashley Hamer.

Today you learn about why the amount of light you see affects how cold you feel, what's

inside a kangaroo's pouch, and foods that can curb the effects of sleep

deprivation.

Let's curb some curiosity.

It's starting to get chilly outside, and the season of the office cardigan has officially begun.

But a new study published in scientific reports shows for the first time that your need for a

fall sweater isn't just about the plummeting temperature. Levels of daylight actually affect your perception of temperature.

In fact, when you start to feel cold,

you might even be able to leave that cardigan on the back of your chair

if you can just find a window.

For the study, researchers gave participants office type tasks to do.

They placed them in rooms set to different temperatures next to windows equipped with filters that led in different amounts of daylight.

While these different amounts of daylight didn't affect the participant's actual skin temperature

or even how cold or warm they thought the room was, it did affect their comfort levels.

In cold rooms with lots of daylight, people reported that the temperature was more comfortable than when the light was low.

But when the room was warm, people were more comfortable

when there was less daylight, not more.

Scientists think this is because light produces

what's known as a cross-modal effect, where perceptions in one sense influence

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