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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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8:57
Let’s learn about how our brains keep track of and try to make sense of time.
12:54
Addressing a few of the most common myths & misunderstandings using scientific evidence.
7:25
Wearing a mask is a cheap and easy way to help stop the spread of COVID-19.
8:11
Why don’t WE have our skeletons on the outside? This is the story of bones!
7:46
Or… maybe the question of what is and isn’t a dinosaur goes deeper than we think?
13:39
No flying animal alive today comes close to their huge size.
13:44
Why do viruses like SARS-CoV-2 happen and why are they becoming more frequent?
9:57
Learn about this Nature Challenge.
2:13
Evolution has given us the gifts we need to survive this difficult time. Here's how.
10:52
Celebrating 30 years of the Hubble Space Telescope.
9:52
Let’s dig into our evolutionary past to try and find an answer.
13:12
Here’s the science of handwashing!