Scientists Found the Itch Molecule—and They Know How to Turn it Off

It is not the louse we hate. Nor is it the mosquito, shirt tag, wool sweater, chicken pock, or sudden rash that torments us—the itching itself is what drives us mad. But finally, scientists have been able to identify the molecule that signals our brain to start scratching us raw—and removing it kills itchiness forever »5/23/13 5:06pm5/23/13 5:06pm