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Scientists Solve Monumental Mystery: Why Do We Itch?

A new article in Time reports that scientists have solved the mystery of why people itch. They found that “a molecule known as neuropeptide natriuretic polypeptide b (Nppb) that is released by nerve cells far from the actual itch site triggers an electrochemical cascade that ultimately tells the brain it’s time to get scratching.” While these findings may not seem groundbreaking at first, an expert explains that “chronic itch caused by dry skin, psoriasis, diabetes or even liver disease can be maddening, and the cause has long been a true medical mystery.” Scientists believe these new findings will help uncover ways to prevent itching that is associated with these diseases.

Read it in Time.