Send President Trump abroad to rub shoulders with a bunch of foreigners, and chances are somewhere around 100 percent that he'll come back thinking about whether anyone is laughing at us. "Russian ...

For most people, the sound of laughter is a pleasant experience. Even when we’re not taking part in the merriment ourselves, just hearing other people laugh can boost our mood. Generally speaking, ...

When Robert Fulton insisted that he could build a commercially viable steamboat, they laughed. But in 1807 his ship the North River Steamboat chugged its way up the Hudson River, and just like that ...

Couples who have a similar sense of humor and can laugh with and at one another — even when one partner is being teased or affectionately poked fun at by the other — are more likely to have satisfying ...