All Items Tagged


Jun 16, 2014 02:30 PM ET // Tanya Lewis, LiveScience
Doctors report the case of a young girl with incurable laughter, which turned out to be from a brain tumor.
May 14, 2014 09:20 AM ET
Ever hear a joke that isn't funny, but you laugh anyway so the joke teller doesn't feel bad? New research says quit it! Laci discusses how most people can tell when a laugh is fake!
Dec 18, 2013 04:45 AM ET
Laughing is weird if you think about it -- a physical response to something we find funny, or even uncomfortable. Guest host Annie Gaus explains why we do it.
Nov 25, 2013 09:45 AM ET
Ever try to tickle yourself? It doesn't work! Anthony explains how tickling works and why it's something you can't do alone.