A mouse temporarily scratches when injected with a substance to cause itching. But mice that can't make serotonin don't scratch as much as their litter mates that do make it.

The Simpsons is a show brimming with great characters, but some of its funniest barely needed to appear to leave a lasting ...

There are several medical conditions, from dry skin to psoriasis, that can cause uncontrollable itching that doesn't go away. Now researchers at Washington University School of Medicine in St. Louis ...