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It's Okay to Be Smart
Why Do We Have to Sleep
Season 3
Episode 48
Why do we sleep? We spend a third of our lives in slumber, but science has yet to determine exactly why we have do it. Here’s a look at how sleep works, why we’re not getting enough sleep, what happens if you DON’T sleep, and an idea about where sleep came from in the first place.
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11:43
Despite what you may have heard or learned in school, the sun is NOT the center of the solar system.
10:23
People see faces everywhere thanks to a quirk of the brain called visual pareidolia.
10:00
Why do the same, self-repeating patterns appear in trees, rivers, lightning, and even our bodies?
15:25
Our animal brains deal with quantities in very specific, and fascinating, ways.
12:54
Can new technologies make death prediction even more accurate?
21:33
AI may help us talk to whales soon. But should we?!
10:40
The cosmic distance ladder is the world’s longest ruler, built to measure the universe.
15:17
On April 8, North America is getting a total solar eclipse. Here’s what you need to know.
12:09
Learn about the space junk problem and the giant space claw named ClearSpace-1 that might
14:28
These tiny pieces of an ancient asteroid could hold the secret to the origin of life.
10:28
What do scientists think are the best ways of reaching out to aliens?
9:40
How bad is climate change in 2023? Can we do anything about it?