It starts calmly - and then everything breaks. This moment captures reactions that spiral into uncontrollable laughter. No ...

When you’ve lived as long as I have, you’ve had a lot of “happenings” and many of them were on the verge of hilarious.

Long before modern brain imaging technologies illuminated the neurophysiological mechanisms that make laughter contagious, William James (1842-1910) observed, "We don't laugh because we're happy, ...

Researchers have identified why suppressing laughter is easier when you’re alone. Social settings, they say, make emotional ...