May 23, 2013 — Itch can be a useful warning sign, or a maddening symptom with no cure. But the origins of itch have long been a mystery. Scientists think they've come closer to understanding the origins of itch in a molecule that makes mice scratch like mad.
Jan 27, 2012 — Scratching an itchy ankle is more satisfying than relieving an itch on your back or arm. Even if you thought you knew that, scientists now have evidence to back up your hunch.