NIJMEGEN, Netherlands — Ever try to tickle yourself? Go ahead, stroke your own armpit or foot sole right now. Feel absolutely nothing? That’s because your brain is playing a fascinating trick on you — ...

“My friend’s sister always asked me to tickle her, and I would. Then one day I was tickling her and she climaxed and kissed me. It freaked me out because I wasn't tickling near her private parts. I ...

Inside a Berlin neuroscience lab one day last year, Subject 1 sat on a chair with their arms up and their bare toes pointed down. Hiding behind them, with full access to the soles of their feet, was ...

Tickling can make you laugh and squirm, but why? Here's the science behind knismesis and gargalesis, and why you can't tickle yourself. Avery Hurt is a freelance science journalist who frequently ...

“I have a bunch of weapons if you want to use them,” Ryan said, reaching inside the black drawstring bag. He pulled out a hairbrush. “Weaponry” in the world of tickling meant things like hairbrushes, ...

For many of us, the tickling response is paradoxical — the playfulness it inspires is typically enjoyable, but the overstimulated nerves and loss of control can feel distressing. Whether you find it ...