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Don't wash: Greasy hair cleans the air

And you thought the grimy, eco-activist barista at your local coffee shop was just dirty. It turns out the long, slimy mane he's been sportin' since 1997 is actually part of his quest to save the planet!

The latest news -- from real scientists -- is that greasy locks actually clean the air you breathe. Apparently unwashed hair absorbs ozone (seven times more than a clean coiffure, in fact). So, because ground-level ozone is known to cause (potentially fatal) respiratory ailments, the dirtier you are you, the better you feel.

"For dirty hair, the ozone concentration around the head is likely to be substantially lower than the level in the room," says Glenn Morrison from the University of Missouri.

Knowing this, and considering your hair conditioner might be hiding parts of placenta, maybe it's time greasy hair got fashionable again. The 90s are making a comeback, right?

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