A 2004 article found people were 30 times more likely to laugh in groups than by themselves. The brain may recognize laughter associated with other people and process it differently. A small 2013 ...

How do people express laughter online? To find out, Facebook's research group examined posts and comments posted ... lol, hehe, and happy/laughing emojis. Variants of each were folded into the larger ...

During the group's recent four-night ... come to life," Wahlberg, 53, tells PEOPLE exclusively about their throwback moment. "We really couldn't stop laughing, which is really in the spirit ...