You scratch an itch to cause pain, which soothes the itch. Then your body releases serotonin to reduce the pain, and the itch flares up. Read the rest
Mark Frauenfelder, Boing Boing
Fri, 10/31/2014 - 9:11am
You scratch an itch to cause pain, which soothes the itch. Then your body releases serotonin to reduce the pain, and the itch flares up. Read the rest