April is the traditional month for spring cleaning: opening doors wide for the first time in months, polishing things till they gleam, possibly beating on rugs with some kind of stick or club? In honor of this season of good housekeeping, we've asked Jeopardy! mastermind Ken Jennings to help us out with a little mental spring cleaning. He'll be dusting away some persistent around-the-house myths and spraying the sweet-smelling Lysol of Truth over all your remaining brain clutter.
The Debunker: Is Most Household Dust Really Human Skin?
Do you feel "comfortable inside your skin," as the saying goes? Well, just wait a few hours. You may feel like your skin is a permanent part of you, but in fact, the body is constantly replacing its billions of skin cells as they wear out. Every hour, you lose over half a million dead skin cells. In fact, eight hundred of the little guys just flaked off while were reading this sentence.