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, ...

An adorable video of a baby’s reaction to her mom cooking has been capturing hearts on the internet. The little one is leaving everyone awestruck with her heartwarming giggles that are truly ...

We dare you not to crack a smile watching this girl laugh hysterically at her older sister! There is something so human and special when you hear a genuine uncontrollable laugh erupt. No one has a ...

Isn't it crazy how babies can do the same thing over and over again, and it's just as funny for them as the first time? For little Henry, that thing is dropping an envelope from his bouncer, and it's ...

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

They say laughter is the best medicine but this video also proves its also pretty contagious. The Laughing Tram Man stood along side other travelers on a simple Monday morning and began to giggle. As ...