Hi, you're about to get smarter in just a few minutes with Curiosity Daily from Discovery.

Time flies when you're learning super cool stuff.

I'm Nate.

And I'm Callie. If you're dropping in for the first time,

welcome to Curiosity where we aim to blow your mind by helping you to grow your mind.

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Today, you'll learn about how we experience colors differently as we age, a discovery from the time of the very first

continents on Earth, and the impact of mobile phones on infant health.

And it's not what you might expect.

Without further ado, let's satisfy some curiosity.

Researchers at University College London have discovered that our perception of colors changes as we age.

All right, let me stop you right there because color perception is one of those things that just kind of boggles my mind because the way we perceive color is subjective right?

So let's say we both hear the word red and we each conjure up that color in our minds. There's no way of knowing how... the are versions of red, the scientist herself has to deal with her own perception of our perceptions.

Exactly. You've actually hit on one of the huge challenges in studying how our minds perceive color.

And you're right, you will never know how I perceive

colors in my mind and I can't know how you perceive them either. But this clever

study actually found a workaround. Okay, I'm all ears. So they weren't

exactly concerned with color itself, but how our sensitivity to it changes over time.

They recruited a group of young adults, mostly in their 20s, and a group of older adults whose average age was about 65.

They were put in a dark room and exposed to 26 different colors for a short amount of time.

Now when they were looking at the colors, a super high-tech camera was actually looking at their pupils.

So they were using physiological clues to figure out how they were perceiving the colors.

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