What's your definition of happiness? Research in the field of positive psychology often defines a happy person as someone who experiences frequent positive emotions, such as joy, interest, and ...

New Happy is my proposal for a fresh definition of happiness, one that’s based on ten years of research and hundreds of scientific studies.

The definition of happiness shifts radically but predictably with age, research shows.

In the absence of a clear definition, we look to the world to tell us what happiness is. This definition gets documented in our own personal dictionary of beliefs: This will make me happy.

Whether money can bring contentment depends on your definition of 'happy', says Philip Ball. If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By ...