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It's Okay to Be Smart
%$?# Allergies!
Season 3
Episode 23
Springtime means the arrival of green grass, bright flowers, and buzzing bees. But for many of us, it’s also about sneezing, watery red eyes, and a runny nose, thanks to allergies. In this week’s video, you’ll learn why we get allergies, how our immune system turns against us to attack pollen and pets, and why allergies seem to be on the rise in developed nations.
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8:32
Animals as simple as bees and as complex as you and me and have fun too!

13:10
We explore why embarrassment has lasted through evolution and its function.

13:49
We are in search of the blackest black things on Earth and why.

14:24
Knowing exactly what a “second” is is more complicated than you might think!

13:41
The secret is In order to know WHERE you are, you need to first know WHEN you are.

15:07
We learn how spider vision works.

12:44
Let's learn the story of one of the worst natural disasters that’s ever happened!

27:56
We learn about all the reasons that Earth’s climate changes, natural and otherwise.

12:31
Turns out, we can blame it all on neutron stars and some oddities of the periodic table.

10:00
Join Joe in this whirlwind tour of the endocrine system to find the answers.

8:29
Is Everest the tallest mountain on Earth? The answer is not as simple as you might think.

17:59
Turns out we’re all at risk of being overconfident about something.