Health Check: why do we itch?
- Written by Yuan Lei, Graduate Student, Institute of Neuroscience, Chinese Academy of Sciences
Feeling itch is a warning from your skin. from www.shutterstock.com
We’ve all experienced the unpleasant sensation of being itchy. For many years, scientists suspected that pain and itch were the same thing, only differentiated by their intensity: itch was just light pain, and pain was strong itch.
But we now know these two sensations are...