A new study showed that laughter is a better indicator in determining friendships than even speech. Volunteers were able to pinpoint groups of friends versus strangers by listening to their laughter.

Some laughs warm the cockles of one’s heart, while others scare with their sinister tones. More than 95% of conversations contain laughter. People laugh for various reasons: to express amusement, ...

Everyone fakes a laugh once in a while – whether it's smarmy politicians, cheesy gameshow hosts or the suckup at work. But is that pseudo snickering really fooling anyone? Turns out it can, but not ...