The researchers also demonstrated that scratching prompts pain-sensing neurons to release a chemical known as substance P, ...

Scratching is often pleasurable, which suggests that, in order to have evolved, this behavior must provide some kind of ...

Mice that were free to scratch their itchy ears saw the number of immune cells go up and levels of infection-causing bacteria decline ...

New research published in the journal Science uncovers how scratching aggravates inflammation and swelling in a mouse model ...