Why scratching an itch feel so good
Scratch, scratch… and then you hit the exact spot. Aah, yes! We have all had that satisfying moment when a stubborn itch finally disappears under our fingernails. But why does scratching an itch feel so good, and sometimes even feel pleasurable?
We haven't written up this one. The Hindu - Sci-Tech has the full story — the link below goes straight to it.