Tickling, a seemingly involuntary reflex, evolved not for humor but for connection. It targets exposed areas, triggering ...

Getting your Trinity Audio player ready... By Rachel Feltman and Sarah Kaplan, The Washington Post Dear Science: Why do we only laugh when someone else tickles us? Why can’t I tickle myself? Your ...

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 ...

• 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 ...