Scientists have uncovered a hidden “stop-scratching” signal in the nervous system that tells your brain when enough scratching is enough. The discovery centers on a molecule called TRPV4, which acts ...

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TRPV4, an ion channel, is found in neurons classically associated with touch, called Aβ low-threshold mechanoreceptors. New research indicates that TRPV4 can generate itch, but it also helps trigger a ...

Scratch-off tickets are big money for state-run lotteries. Is it the promise of winning big that keeps players in the game? Or is there something else happening in the brain? NOVA is available to ...

Mosquito bites are itchy and we tend to scratch itchy things. The scratching feels good in the short term but tends to hasten and exacerbate swelling and inflammation. This leads to more scratching ...

How does the body know when to stop scratching an itch? New research is giving us more insight. Scientists have long known about the itch-scratch cycle. When an irritant gets on your skin, a ...