Maybe there is a tickle monster living underground or on a planet called Ticklelandia. And the people come to Earth and while we’re sleeping, they get in our mouths and live in our bodies. That’s why ...

Aysha Bellamy does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

"Why do you laugh when you get tickled?" asked Samantha Waitley, 8, a third-grader at Townline Elementary School in Vernon Hills. Tickling is often a way to show affection. Babies and little kids are ...

Don’t try this at home, but tickling a gorilla, orangutan, bonobo or chimp can inspire bursts of grunting sounds. Yes, that’s laughter, says Marina Davila Ross of the University of Portsmouth in ...

Tell a silly joke, sneeze at a rather inopportune moment, remember something that embarrassed a good friend, forget which suit is trump in the card game you’re playing…there are a thousand and one ...

Tickling remains one of the most enigmatic sensations, blending neuroscience, psychology, and evolution. Despite centuries of study, its underlying mechanism continues to puzzle scientists, revealing ...

When Cartoon Network announced plans for new programs — a "curriculum," as they put it — "to help preschoolers learn to have a sense of humor," it almost sounded like, well, a joke. Don’t little kids ...

• Lines close to your heart make your heart laugh. Then your heart tickles your brain, and it laughs. Then your brain makes you laugh. Nicolas Villegas, grade 2, Glen Acres • Because your skin is ...