Remember having knock-down-drag-out tickle fights as a kid? At the time, they seemed like a normal part of play. But for most adults, the thought of being tickled is annoying at best. And yet, it’s ...

In a grey-walled room in the Dutch city of Nijmegen, a strange activity is underfoot. Wearing a cap covered in sensors and positioning themselves into a chair, a person places their bare feet over two ...

It makes us smile every time: We're petting a dog and happen to hit a sweet spot that makes them wriggle with joy. On the flip side, sometimes we pet a pooch in a particular area and they've clearly ...

Tickling is a very strange sensation because it doesn't depend on your will. That's right, you don't decide whether or not to laugh; your body simply reacts. Your brain doesn't even have a chance to ...