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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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How science unraveled one of the biggest myths in modern medicine...HIV's true origins.
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I pushed my body in a climate & sports research lab to discover what extreme heat really does to us.
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If everything around us is made of atoms, why can’t we actually see them?
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This video explores the bizarre mathematics that show how infinity is far stranger than a number.
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How Gerardus Mercator later created a map that transformed navigation forever.
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DNA solves crimes, but what happens when it sends innocent people to prison?
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How thousands of tiny brains, obeying simple rules, solve problems no individual can understand.
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Joe visits a flavor lab to uncover how our senses shape our taste.
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How did the mass extinction of the dinosaurs play out, moment by moment?
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Think traits like eye color or tongue-rolling are simple genetics? Think again.