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Fever Blister vs. Cold Sore

Rebecca in Austin, Texas, wonders why the terms cold sore and fever blister describe pretty much the same thing. Also, why do we say we have a cold, but we have the flu? The word flu comes from the Italian word for influence, influenza, and is a...

Spur of the Moment

A caller with a 25-year-old parrot wonders: How much language do birds really understand? Plus, Knock-knock. Who’s there? Boo. Well… you can guess the rest. But there was a time when these goofy jokes were a brand-new craze sweeping the nation...

A Cold, The Flu

Why do we say someone has a cold when we say someone else has the flu, and another person has croup? This is part of a complete episode.

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