EVA DICKERSON Now you know! DACHER KELTNER Those were clips from a video created by college student Eva Dickerson, and it shows how powerful a compliment can be, and how it can boost someone else’s ...

This makes perfect sense. At the micro level, showing gratitude to someone on the occasion of them performing a good deed is simple and the results are easily understood. But things get more ...

We all want to be happy. Yet happiness can often feel fleeting and largely elusive. But as much as the path to happiness remains a mystery, the answer might actually prove surprisingly simple. It’s ...

The Declaration of Independence promises life, liberty, and the pursuit of happiness. But what kind of happiness? Are we talking about what English speakers call “joy,” or alternatively “contentment”?

Timothy Madders, 7, "wanted to do something to cheer [the Queen] up" Stephanie Petit is a Royals Editor, Writer and Reporter at PEOPLE. Seven-year-old Timothy Madders had the perfect way to lift Queen ...