Yesterday, someone said something that had the whole group of people I was with absolutely belly-laughing. Once the guy got started, he kept going, improvising something somehow funnier with each ...

Can we infer someone's cultural group from their laugher, even when we do not know what they are laughing at? And what kind of laughter do we find most positive? A new study shows that our laughter ...

She has been warned that it might be hard to make this particular group laugh - that these individuals typically don't even smile much. That it's a pretty serious group. But "Mrs. Giggles," also known ...