Next up: Mosquitoes, chickenpox, sheep wool. People can name a hundred things that can make them itchy, but no one can tell you why. It's had scientists scratching their heads for years. Has it got ...

Researchers identify the TRPV4 ion channel as the body's internal "stop scratching" signal, offering new hope for chronic itch relief.

I remember it well: our dark winter of itch when the kids were small. It started with a note sent home—years before the pandemic—that my child had been exposed, not to a deadly virus but to lice.

That maddening itch inside your ear isn’t just annoying, it’s trying to tell you something. While you might be tempted to grab the nearest pencil or paperclip to scratch that unreachable spot, we’re ...