Should You Scratch That Itch? Science Has a Surprising Answer
So why is the instinct so strong? Daniel Kaplan of the University of Pittsburgh, senior author of the study, said in a universitystatement. Our study helps resolve this paradox by providing evidence that scratching also provides defense against bacterial skin infections. Itching makes it worse.© Freepik They induced the symptoms in normal mice, as well as mice without itch-sensing neurons. When normal mice scratched their ears, the appendages swelled and filled with neutrophils (inflammatory immune cells)....