Why can't you tickle yourself: Just imagine, you are sitting with your friend and suddenly he starts tickling you. You start laughing and running here and there to save yourself, but now tell me, what ...

Socrates wondered 2,000 years ago, and Charles Darwin also racked his brains: what is a tickle, and why are we so sensitive to tickling? ‘Tickling is relatively under-researched,’ says neuroscientist ...